Some time ago I posted a couple of pentatonic scales for use in simple improvisation (click on the improvisation link in the right-hand column under "Music by Difficulty, etc."). This is an accompaniment which can be played with improvisations based on those scales. Obviously, it can be repeated ad infinitum.
A very elementary trio. The score is printed on the first page, the three parts seperately on the second. If you save it, you can print whichever page you like.
Happy New Year - if you're reading this in January. This is an elementary duet. Term is just starting, so I'm obviously pretty busy. However, I hope to be posting some more pieces this month, so watch this space...