Reddit reviews Counterpoint

I used the 4th edition of the Kennan text in my orchestration course at conservatory and quite liked it. Kennan also wrote a very good book on counterpoint, so there's that as well.

If you want to read some Fux for counterpoint, get Alfred Mann's translation of the work of Fux — The Study of Counterpoint: From Johann Joseph Fux's Gradus Ad Parnassum.

Walter Piston's Counterpoint is also a classic.

Basically, if you really want to understand these topics you'll need to read several books on each on top of doing a whole bunch of score study.

Music theory is not different on a guitar than on any other instrument. And it gets very hard to get music theory correct when it is taught by largely self-taught guitarists, because they have a tendency to think every shape they play requires a name (a trait shared by musicians on most chromatic instruments).

Go get a basic music theory book like Music Theory for Dummies or Music Theory: From Begginer to Expert. After youv'e gone through and really understood what's in those texts, you'll be ready for more advanced stuff like Mark Levine's Jazz Theory or Walter Piston's books such as Harmony or Counterpoint.

Alternately you could look at texts on arranging and orchestration at that point as well.

Stay away from instrument specific texts, particularly those related to chromatic instruments (of which the guitar is one) because you'll almost find something that is a well-intended, but mistaken, concept. Also avoid texts aimed at Berkelee school of music. While they are a great school in terms of their performance degrees, they have an odd fascination with modes that is shared by virtually no other music school in the world.