Many years ago, I tried to study and play music. My instrument was, and is, the classic guitar. I studied a lot of scores, mostly classic and contemporary music. Classic guitar has been just a pop/folk instrument till the beginning of 20th century, so most of the classic music for guitar you can find is made of transcripts from scores for other instruments.
I played Bach's, Mozart's, Vivaldi's and many others' music (transcripted from violin scores mostly) but I also studied some composers of the 20th century, like Leo Brouwer and Miguel Abloniz, that wrote music for classic guitar.
And yes, of course I tried to compose some studies myself, in the 80s. I didn't try it ever again.
So, below you can see some handwritten music sheets I wrote more than 30 years ago. I have no audio of me playing them, and I can't record it now (It would take a lot of time for me to study and learn that scores again to be able to play it fluently! ^^). Besides, well, those studies are not so good. ;)
I found also a transcript of a Bruno Maderna's music, from the original for piano and violin, I did. Some guitar students can use it, maybe.
If I find a software that can read and digitalize those sheets, I will be able to hear them again. :)
This study is the best one I wrote, in my opinion:
The one below is thought for the text of T.S. Eliot's poem "Death by water":
Another study:
And a more complex piece:
Another short study:
And a don't-know-what-it-is:
And this is the transcript of Bruno Maderna's "Serenade fur Claudia":
