I have played in a guitar / bass / drum trio for many years that only recently became a four piece. After getting sick of missing string parts, horn sections, organ parts and the like, I decided to teach myself to play a keyboard to try to enlarge the sound. Now through practice and gigging I play the bass with my right hand, (lefty) keyboard with my left, sing lead vocal and /or harmony and turn on and off a Digitech Vocalist harmoniser with my right foot all at the SAME TIME! So the next time you get frustrated just remember what I have to do to get through the night! I agree with the others, just practice and what seemed so insurmountable before will become so second nature you'll wonder what all the worry was about. Mike
P.S. As I recall two of the most difficult lines to sing and play for me was the middle section of Roundabout and singing lead on Paul Simons Late in the evening while trying to keep that bass line in the pocket.