You can get by without knowing theory, but why? You can learn the basics via YouTube videos or a few lessons. There is literally no situation where knowing some theory will be a disadvantage.
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So you are just like Bobby Vega then. He played with TOP and everyone there reads. He does encourage everyone to learn how to sight read. If these top talented musicians in the planet, did you ever had to read a chart. Even if it is a number chart then you must know more than little. If you played jazz then you know theory. You just don't have a music degree
Miles Davis Christian McBride dropped out of music school.
Need some carotene?Maybe you don't.
Musicians do.
You wanna be a musician or play cover songs lol?
I think a better analogy is:You don't need it inasmuch you don't need a knowledge of anatomy to digest your sandwich.
But if your tummy hurts, it helps to know why.
You wanna be a musician or play cover songs lol?
I've written and recorded about 100 songs. I've played in successful original bands and toured in the US and abroad. I've played in about 50 cover bands. I've performed with some well known musicians as well as some of the most talented on the planet. I currently earn most of my living playing bass.
I know very little, if any, theory.
I think this is a useful way of viewing it. But knowing how to play intuitively is not synonymous with knowing music theory. You can do something well without knowing why you do it. In other words, you are not really using theory. Because of this, if you play intuitively you are only prepared to deal with circumstances you have previously experienced and understand. For example, when I play complicated new chord changes my ear may not know what to do. However since I know a bit of theory, I can analyze the chords to derive how the key center changes as I move through the progression, and this tells me what notes are correct. Overtime as I practice, I learn the sound of the progression intuitively by ear and no longer have to rely so heavily on theory.Theory is to music as grammar is to language.
Why wouldn’t someone who plays music want to learn more about what they do. It’s onevthingHopefully, not a divisive question
You don't need it inasmuch you don't need a knowledge of anatomy to digest your sandwich.
But if your tummy hurts, it helps to know why.
not a divisive question

This question comes up a lot on here. You’ll get two camps replying:
The ones who know music theory are convinced it’s indispensable.
Those who have gotten along just fine without it are convinced it’s not all that valuable.
The real answer? depends on who you want to hang and play with.
Music theory is an in between thing. If you want to work with things that threaten your life, from electricity to nuclear power, knowing the theory behind what’s going on is crucial. Music is different - you won’t die, you’ll just play a wrong note. You might, in some cases, lose a gig. Only you can decide if it’s worth the time investment; that depends on where you want to go with music.
In my case, music theory allowed me to pursue a higher quality gig and actually make a decent living. Music theory was basically a job requirement.
I played in cover bands and big bands before I learned music theory. It was a lot easier to do the job after I learned music theory, and I was a lot better at it.