Well..... you've tackled an interesting topic.

as the arranger/composer, you can do what you want..... BUT...

To put together interesting pieces, you really need to study the genre in depth to get a feel for how it's done.

A really good foundation in music theory as it's applied to classical music would be very, very useful in doing this.

You really need to be able to "think" like the 4 players would. 4 part harmonies and the chords you build with the instruments. Then, of course, the song structure. Modern pop converted to a chamber group is easy.... just arrange it. If you're working in the classical domain, structure is important.

Again, this isn't my strong point. I'm not a fan of this genre. I did study music theory for 2 years in high school. That was 2 years that convinced me I didn't want to study it or work with it in that manner on a daily basis. The teacher was pushing the 4 students in the class to become teachers of music. Yeah... that was a small class. But talk about one on one time.... we had a good time and I learned much.

Anyway.....I digress.... study the art form first.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.