Many of the Gaelic books of songs have music in the Sol-Fa notation. However I have NOT been able to locate a single resource which tells me note length. It's pretty confusing. I can look at one song in one key, compare it to another song, and the various puncutation, [ ; , . : - ] which SEEMS to be used to indicate length quite often seem different. A Quarter Note might have a : following the S but in a different song, it might be the , which indicates it! VERY strange notation.