Why a Five String Cello?
There are already compositions written for the five-string cello, I am told…but not being a cellist, I simply have to take the word of the players who tell me that one of the Bach cello suites was actually written for a five-string cello, and is very difficult to play on a traditional cello of four strings.
One of the beauties of the five-string cello is that it virtually eliminates “thumb-position” playing, in many compositions. The player can simply go to the next higher string. In addition to that benefit, there is obviously a wider range within which to play, because of the additional string, which is a fifth higher than the normal high A…it is a high E.
Here is an example: