We play blues and roots rock mostly, guitar player does all the singing (his band, his choice). We have been discussing adding another member. Positives: larger repertoire, 2nd soloist, possible vocals, rounder sound. Only negative I can see would be less money for each of us and maybe a bit of ego. My question is what is your opinion on what to add? Sax, keys (I know a killer organist, sings too), 2nd guitar, harp (its a blues band), zither? Tell me what you like and why! Thanks all!!