guitarseller345645 wrote:Scot, what is the minimum number of strings necessary to achieve all the 'frequencies' that exist? Is it 10 - reason for 10 string guitars being so popular?
I don't really know what to optimum number of string would be, I'll have to find out but the way our musical system is laid out I suspect many more than 10. The popularity of the 10 string instrument is that it is a manageable number and it's a number that fits most easily into our human psyche...10 finger/toes, 10 cents to a dime 10 dimes to a dollar, ten times ten dollars to a hundred etc. Many things in our world are multiples of 10 so it's in our brains and we can comfortably work with it.
Once lutes went beyond 10 courses at the end of the Renaissance things changed drastically for the instrument, players, music and it has been argued that was the beginning of the end for the instrument (I don't really subscribe to that particular theory but too many courses may have been one factor in it's eventual demise).
I think the Russian 10 string guitar with it's seven strings on the fretboard and three floating makes much sense if one were diatonically tuning the instrument. The Yepes/Ramirez 10 string makes the most sense for his particular tuning (F# G# A# C E A D G B E) and is probably the most versatile.