Guitar Lessons by Chip McDonald - January 2019

Monday, January 28, 2019

"How Long Will it Take Me To Learn Guitar?" - Addendum

 No, I don't have an answer for that, as I've written about in my book.  There can't be a definitive answer for that.

 However, I have thought of a way of looking at time spent practicing guitar in a specific, efficient manner.

 Malcolm Gladwell has his 10,000 hours for mastery. I'll say you need to do those 10,000 hours at least 30 minutes at a time.  Generally, for most "challenging but within grasp" singularly mechanical/kinesthetic things:

10 minutes can show a temporary improvement, under "skilled direction / coaching" (in other words - by me. :-))

  It won't stick.  It will go away in less than a few minutes possibly.  Muscles have become limber, and the beginnings of muscle memory are happening.  The constant focus clarifies the kinesthetic awareness of movement, it starts to become familiar.  My usual adage is "go home and keep at it for as long as you can" because...

15 minutes WILL make a semi-permanent improvement.  

Provided the mechanics of something are reduced to their simplest, most concentrated form. At 15 minutes it will "stick" for 24 hours - until your muscle memory fades.  If you do another 15 minutes, you'll maintain that, and another 15 minutes you can extend it another 24 hours, etc..

30 minutes straight: a sweet spot. 

At this point if you do it again within 24 hours, you will actually be "building on top" of what you've accomplished the previous day.  Provided you do the exact same thing, which is extremely difficult for most humans.

45 minutes, the amount where the next time you play you can "see the horizon"! 

This means you retain a bulk of the skill set you acquired previously, and you then gain the beginnings of having a "yardstick" in which you can judge - or at least feel - when you can accomplish something.  Knowing whether you can play something ceases to be a question mark.

 This is super important from my standpoint of running a business!  If everyone I taught practiced at least 45 minutes a day, I would keep students for a very long time.  Because, at this point I'm not having to do psychological therapy to try to convince you you'll get better - you'll SEE that you can get better.

Again, the caveat being if it's one specific goal: a phrase/technique/passage/part.

 I face two issues as a business: the student not playing enough daily, and then having to be a magician to make up for that lack of playing in a 30 minute lesson, AND "mission creep": wanting to accomplish too much in one week.  WAYYYYYYYYYYYYYYYY too much!

 Expectations in the 21st century are crazily out of whack with reality, for various reasons I won't go into.

1 hour.  Big gains!

  At one hour a day, on the day after one will experience the semblance satori: enlightenment.  Skill will be compounded, and the yardstick phenomenon cited above becomes clearer, and suddenly - one sees that most anything that a human has done on guitar is doable!  Well, hopefully one sees that.  If you apply your efforts accurately and consistently.

 This is a bench mark for parents to realize. This is the big takeaway, and that is:

learning that time spent on something almost always has a pay off! 

 Even the kid that is goofing around for an hour.  A human can't do something focused for an hour and not learn something.  It's not possible.  

 Let's say somebody gets really  hyped up about playing some little bit from a Favorite Song.  And that's all they do for an hour. Maybe not spectacularly well, or perfect, but when they do it the next day they'll realize "hey... this is easier than it was yesterday!".

 That is why taking guitar lessons is more important than football or soccer.  You're never going to get that self-awareness of "yesterday I did something I specifically couldn't do for an hour and today it's easier" from football practice.  It's too diffuse, too general, and too diluted among a distracting group of people.

 When one practices alone, on one thing, for 1 entire hour, it will still be there the next day as "bonus".  But another hour does something very special:

2 hours: magic kicks in.

2 hours, either back to back or across 2 days, is special.  That's when the sensation of "I'm getting significantly better" happens.  The beauty of that being it's very motivating!

 Not 2 hours of kinda messing around, but 2 hours of something specific, applied repetition. A guitar solo, a specific chord change.   It can be just a simple song with open chords.  Play that song over and over for 2 hours, the next day you will definitely feel you're technically much better.

 There is zero ways around it.  YOU WILL FEEL AND KNOW YOU'RE BETTER.  Repetition is simultaneously the easiest and most difficult thing in the world.

 Most people have not done anything very specifically skilled, constantly focused, for more than a minute at a time.  These days maybe not even that long.  Play something very specifically for 2 hours - your muscles will be stretched out, you will have developed a muscle memory, you will have crossed a boundary where what you're doing takes very little mental effort and is becoming ingrained.

 You will be stronger the next day. You will be able to retrieve the muscle memory faster.  You will reach the satori-state faster.  You will be able to focus your effort faster, compounding gains.  Maintain an hour a day and that in itself becomes compounded.

3 hours plus: the land of the professional...

 I won't lie. I think each hour past 2 has a modifier of about a ... 20% reduction in practical gain in ability.

 What happens here is the mental wielding of concepts and phrases, exploring combinations and marking down, mentally, the results.  While you don't get as much physically I think from 3,4,5 hours of practice as you do out of the first 2, what you gain is in mental manipulation of your acquired skill set.  It's where "sounds" start getting labels based on experience.  It's the land of memorization and mental agility.

 Practice that Eric Clapton solo for 2 hours with the song.  In the 3rd hour you're not going to get physically better, but your "situational awareness" changes.  You can relax for starters, and you can contemplate how what you're doing fits in with the whole in a proper way.  You can listen to the pick attack, the nuance of the vibrato and bending, the amp sound.

 At 3 hours you're committing it to memory.  5 years later it might take you a moment to refresh your recollection of how to do it, cobwebby, but it will be there.

 Has the reader ever sat down and played the same song for 3 hours?  Honestly?  I'm guessing probably not.  The difference in being able to scratch through playing something, and having COMMAND of it, is in this. It's difficult practicing out past the point of "I'm pretty sure I have this", but going further is what makes someone a pro. 

 All of the above time spans are referenced to one day.  It's just the way it is, you can't get around it.  15 minutes, 30, an hour, 2 hours - that's what happens.  The great thing is that the above is FREE.  It doesn't cost you anything to do, and if you can get to each of those landmarks you'll gain something that is literally applicable to any other skill.

 Back to Gladwell: I believe his assessment is generally true.  You CAN be a "master" on guitar in around 10,000 hours.  Whether you do that at a rate of 8 hours a day or 30 minutes at a time.  In other words, you may as well strive for it - mastering an instrument before you die is better than not, right?  You can do it slow or fast, but it's predicated upon those 10,000 hours accumulating under the above parameters.

Wednesday, January 16, 2019

Impressions - Being Human is Data Compression

 I just tried to make a video for YouTube.

I was doing an extemporaneous analysis of the bootleg multitracks of the Beatle's _Sgt. Pepper's Lonely Hearts Club Band_.  So I thought, hey, I'll just go through each track and babble about what strikes me as it happens.

 As it turns out - and I knew this, but it was not illustrated to me so viscerally - I think a lot.  I did an hour straight on trying to get out of my mind thoughts about just the second section string track and the vocal track.  I was trying to be "not super detailed, not overly OCD".  I skipped a lot, what I perceive as being "a lot".

 What I don't perceive as being "a lot" is what is condensed as "what I'm hearing".   To unpack what I'm perceiving on just 2 seconds of part of the strings track could really take easily over an hour.  Translating instantaneous perception to what is in reality "slow motion" human "music theory" jargon. 

 But then also, the implications of it.  How it strikes me emotionally, but then also what I think the context is, and the timbral sound, and the ambience. 

 I stopped after realizing I could probably make 4+ videos on each part.   Whether anyone would care I don't know, I halfway think I should just do it just to see, or for merely the sake of it.  What is interesting is that in the literal process of doing it, I realized how much information the idea of



reduces, as a human.  It's somewhat token based, but also a blend of other compression and sorting schemes.  

 The human input/output buffer is massively parallel, obviously.   An epiphany for me is that what probably makes me a "naturally overtly talented musician" will work against me in this context.  It might be informational for a student, when I forced to condense things into a 30 minute lesson, but when allowed to expand in this way without that temporal boundary it's an ocean of information to wade through and collate.

 I've been thinking deeply about music since I was very, very young.  There are pictures of me with headphones on when I was 4 years old, pictures of me plucking at a toy piano at younger than that.  The ... internal array, the framework of my perception being built for decades now, is a way of compressing experience.  It's what humans do, catalog, sort, and collate experience.  For musical moments, it's definitely too much to try to unpack into a video explanation of said perception in a completely accurate fashion.  It would take a brain download to do that, but the question is can I rise to the challenge of being able to *moderate* it well enough to make gradations of decompressed-perception, to present a pragmatically granular explanation of "thought" that can be of use to somebody?

 I don't know.

 For a few years I've been mulling the idea of making a video series on the title of "Speculative Musical Anthropology", where I babble on what I *think* are connections between different pieces of music from a common background/influence.  I've jettisoned that as YouTube has allowed the corporate copyright-claim jihad to obliterate doing video on "things that could reference copyrighted material", despite the allowance for such a thing under the premise of education.  I don't want to go gangbusters into such a thing only to have it taken down; and I'm typically not motivated to do things if they're inherently likely to be stilted from the outset.  Pursuing the middle ground is the most difficult thing of all, of course.

 I'm stilling cooking the idea, though.  Let me know your thoughts if one cares about said subject.  I know I need a "Youtube presence", but the option-anxiety of possibility is immense.  

Wednesday, January 2, 2019

The Problem With DAW Plugins Not Officially Discovered: Scurrilous Experiments and Non-scientific Conclusions - PART TWO

(note to the glitterati that has contacted me, that either chooses to be argumentatively rambunctious or reflexively pedantic in a ego-needful way: I don't really care, as written in Part One this is errant, off the cuff extemporaneous "speculation".  As such I'm not willing to debate about it, nor do I care if you want to make a mental ego-measuring contest out of it: I don't need to do that, why do you...?)

.. part two, where Chip further digs an unfounded hole.....


The temporal number crunching.  This is where Ye Old Infinite Resolution steps in, but wait! I'm not talking about it in the "traditional sense", give me a moment...

 In the analog domain, your distortion pedal is instantaneously changing your guitar sound.

Every moment you play, yields

1) a unique level
2) a unique pitch
3) a unique harmonic content

 Every moment.  With zero latency, with perfect parallelism.  From a processing standpoint, in software you've got to address those 3 things based on an instantaneous sampling reduced to a single number representing level.  To get a result from your function, you have to determine a modifier for those 3 things.

 This should be perfectly digital model-friendly, it would seem.  The problem I think, is that you have to do math on the single sample one at a time serially, or you have to do it component-wise and then add it together.  You're applying basic math to the number to represent the change in level, the change in pitch, and the harmonic content.  It's really just one number across a set of numbers  - a grouping of 1,024, or some such.  A processing "clump".

That "clump" then leads to another clump, etc..  The math applied to each clump will be the same.
The buffer is NOT instantaneous, however.  So while in theory the sample rate is "fast enough" to represent any audio signal, the software is trying to modify that signal faster than reality.  It's not that the analog world has Infinite Resolution, it's that it has Infinite Parallel Processing Power.  It's not doing anything in a buffered state.  It's not doing anything serially, or in modules paralleled.   No clumping.  One continuum.  The variability changes with infinite granularity; all aspects are not fitted to a curve and composited serially. 

 Comb filtering is (effectively) errors in sound that occur at mathematically regular intervals across the spectrum.  It's my belief that as a byproduct of the math in software happening temporally, clump by buffered clump - but with metered regularity of delimited by the buffer size - that across a longer time scale (a second, 2 seconds), there is a "temporal comb filtering" happening.

 "Temporal Comb Filtering": yes, I made that up.  Normally one describes comb filtering as an instantaneous phenomenon.  "Here is the sample of this moment, and we can see peaks at 100 hz, 200 hz, 400 hz, etc.".  What I am describing is this happening at some ratio across time.

 The buffer z is processed, then z+1, then z+2, etc..  But, because the same math is being applied to every buffer, there could be artifacts/errors introduced that creates a harmonic series only seen in multiples of the buffers.  On a waterfall plot it would be buried among the resulting signal.  A number being rounded up or down, 1,024 times modified by whatever other functions,  creating an artifice that is not visible in a graph, or even a waterfall plot because - how do you know it's an artifact when it's the result of math on a test signal that's changing?

 The rest signal is *variable*.  Guitars are not perfect signal generators.  The math applied to a perfect sine wave would be confusing, because you are making a function that is intentionally truncating values to yield distortion.   You have no way of knowing if your mathematical system across time is making a harmonic series alteration that is not linear to a Real World Analog Amp.

 Even if you have a sweep, or a set complex wave, you wouldn't know because you can never measure it against an analog equivalent perfectly.  Comb filtered sound can measure frequency wise as being "close" - but again I claim the human mind can discern the difference across a large sample set.

 Your brain realizes "there is a commonly reoccurring series here" that doesn't happen in the analog world. A non-humanly testable phenomena, and a non-scientifically testable phenomena.

 The result being, for most distorted guitar sounds I hear an amount of comb filtering I don't like in the mids/highs.  When that doesn't change - it sounds "digital" to me.

 I first had an inkling of this thought when the first Line 6 gear came out.  When I first heard it I was super impressed - it does sound like, in time slices, the real thing.  But then, if you hold a chord and spin the dial while the presets go by, you'll notice a harmonic coloration to *all* of the presets.

 That is software artifacts I think, and it's evidenced by comb filtering in the same manner on everything.  All digital sims have this I realized, when I tried the Fender Cyber Twin for the first time: spin the knob, and there it is, comb filtering.  Plug into the Vox modelling amp next to it, spin the knob - all the presets have that comb filtered sound, maybe at a different frequency/spread.

 Once you hear it, it's always there.  You can fool yourself into thinking you don't notice it, but it's there.  Every electrical system is going to have comb filtering artifacts, particularly speakers, but it's not a fixed thing between devices.  And it's state-variable; more or less evident depending on the input signal.

 As an example of this, I'll point to a video by John Segeborn that is tremendously great and educational.  In this video he plays the same thing back through different models of a Celestion Greenback speaker.  You'll hear comb filtering on each as a "shhhhh" harmonic coloration, but it will be different on model.  Which is fine - that's what speakers do.  The problem is when your software is adding another coloration on top of that one, or homogenizing it:

  In each example you can hear a spike in treble.  BUT, you're not just hearing a spectral peak, it also has comb filtering: a vaguely "smeary" sound, that changes in dominance depending on the signal.  My belief is that humans are super sensitive to this, and THIS is what software is messing up in sims.  I think it is too linear in general to signal level in sims.

 So, at some volumes it might be spot on.  At other levels it's too loud, or maybe buried by the upper harmonics.  This interaction is flawed in digital recreations I think.

 I think.  I do not feel like trying to provide proof or documentation.  I've been (unfortunately) doing all sorts of tedious comparisons and tests for years at this point that has led me to these assertions.  I think there is a problem here in the comb filtering and harmonic decay linearity.  I could be wrong.  Harmonic decay errors, and comb-filtering problems.



 Here's a yet another free idea I wish I had the resources in which to patent, but I don't:
Without a doubt, at some time within 3 years a company will come out with a post-processing VST plugin that will use A.I./confrontational machine laerning to conform a track output to mimic anything.