Re: Mandola in Sol
I am learning viola, in the alto clef of course, and when I got my tenor guitar, tenor banjo and mandola, I just reused my beginner/intermediate lesson books for viola to learn those instruments. Since I only play by and for my own enjoyment at home it makes no difference to me that I won't fit in with a group. Also the fingering is the same for all the above mentioned instruments; that is a real saving of effort.
It is very interesting to try all four instruments on one piece. Usually one instruments wins out. I actually enjoy tenor banjo for much of the Baroque/Classical viola sonatas. Yet too, since the cello is another CGDA instrument, many cello pieces sound great, allowing for the octave difference, on tenor guitar and mandola.
Variety is the spice of life, for sure.
Television is very educational. Every time someone turns it on I go to another room and read a book. .....Groucho Marx