You probably have learned most/all of your musical knowledge implicitly.
Some people have a great ear for music and can write solid songs without formal training in music. Other folks come at music from the more theoretical side, although usually with a lot of implicit knowledge of and experience with music as well.
For most people who are not formally trained in music, their songs can be improved upon on a technical level by someone who has deeper theoretical knowledge (learned either explicitly or implicitly).
For a good discussion of this, check out Tim Ferris' podcast interview with Derek Sivers. Derek talked about how he had learned a lot about music implicitly. In one summer, a teacher of his formalized that knowledge so efficiently that he was able to test out of lot of classes (1.5 years worth?) once he went to Berklee School of Music.
Some people have a great ear for music and can write solid songs without formal training in music. Other folks come at music from the more theoretical side, although usually with a lot of implicit knowledge of and experience with music as well.
For most people who are not formally trained in music, their songs can be improved upon on a technical level by someone who has deeper theoretical knowledge (learned either explicitly or implicitly).
For a good discussion of this, check out Tim Ferris' podcast interview with Derek Sivers. Derek talked about how he had learned a lot about music implicitly. In one summer, a teacher of his formalized that knowledge so efficiently that he was able to test out of lot of classes (1.5 years worth?) once he went to Berklee School of Music.