Yes! I play the altgitarren too! I got mine from Heikki Rousu in the end of april. I love it, it is a fantastic instrument. I have not play it, nor my 6-strings, since 5 weeks because I am in a very intense period of my studies
Before that, I was working on Piccinnini's 6th toccata, Kapsberger's 6th toccata, and the Praludium and The Battle Gaillard from Dowland. The Weiss Ciaccona is my next project... when I will have more time... I love the alto guitar!!