this is an interesting thread. usually, when i post in a thread it seems to die almost immediately. i hope that isn’t the case this time… (maybe it’s my toothpaste?)…
anyway… to the original question… i am sure there are many well known and greatly respected traditional musicians (current and historical) that don’t read or give a tuppence for being able to read. it does not make them any less a musician. they played and became well known or respected because of their love for the music, i suppose. their passion for the music they played helped them to become very good representatives of their particular style, flavor or genre of the music they played…
as for theory… is it good to know? i believe so. it can certainly add to one’s kit. i’m sure there are many examples, though (as indicated above,) of musicians who possess a wealth of theoretical knowledge and remain unable to play well. i am equally sure there are a great many examples of musicians who know nothing of theory, and remain excellent musicians even with this lack of knowledge. i tend to agree with Aanvil’s statement that great musicians who possess no knowledge of theory are not necessarily great because they possess no knowledge of theory… it seems to me that (to paraphrase Paul Simon) their lack of education hasn’t hurt them none. by the same token, who’s to say if they learned more theory , then it would make them better musician’s… “better” then becomes a hazy, subjective kind of thing… imo.
i also think… perhaps in error… that we, as musicians, cannot help but absorb little bits of theory here and there. if we know that different keys have different sharps and flats… we know a little theory… if a guitar player is playing along at a jam and somebody says something like “let’s do a 1-4-5 in Eb,” and the guitar player is able to play along using Eb, Ab and Bb… then he knows a little theory…maybe not a lot. but he knows some. and that is a starting point. if you can play a song by ear… seems to me that falls somewhere in the realm of “applied theory,” if you will. you hear a song… you try to play the first phrase of the song, but the first two notes you play don’t sound right… realizing it or not, you have recognized a difference in the interval between two notes. sounds like theory to me. when all the names get stripped away… we all know some theory… we just refer to it in different ways… we don’t all know the same amount… we don’t all remember everything we know off the tops of our heads… but it’s there.
personally, i know some theory… and i even know that i know it… but in all the years i have been performing, i don’t think there has been a conscious application of theory as i am playing along. i just play. i’ve learned riffs and progressions that work… i’ve stolen riffs, licks and progressions that work… so i use them. sometimes they work, sometimes they don’t. when i’m scoring a piece of music, i fumble along one note at a time until it is right… i’m not fast by any means. i read music, but not well enough to sight read a complex piece in a company of musicians… i know that some notes work well with some chords, some don’t… before i looked at theory, i could only tell you that it just didn’t sound right in that particular application.
there is a place for theory… there is a place for sight reading…
i’ve read similar threads in the past and wondered something along the lines of… i wonder if the guys sitting around the fire playing a great sounding tune a couple hundred years ago were overly worried about the theory, or if they were just having a good time… i wonder if Micho Russell spent a lot of time worrying about theory, or if he just played… and i often wonder if people don’t get just a little “too wrapped around the axle” and forget the most important thing about music… joy.
be well,
jim