This was one of the first of Rebay's solo guitar sonatas that was recorded and made commercially available, alongside the D minor guitar sonata. Both of them are fun pieces and, of course, I hope to discuss the entire cycle sonata by sonata in more detail some time in the future but for the time being I'm linking to performances so that if you've never heard of him or heard his work before you have an opportunity to do that.
Guitar Sonata in A Minor: I. Gut bewegt
Guitar Sonata in A Minor: II. Ruhig und zart
Guitar Sonata in A Minor: III. Scherzo. Lebhaft und mit Humor
Guitar Sonata in A Minor: IV. Lustig bewegt