recently, I did a gig at a singers club.The rule of the club was no instruments allowed.
as I frequently accompany myself on Concertina and Guitar,a programme of all unaccompanied singing, was quite a challenge.
I noticed that I used much more ornamentation in my singing when I didnt have to rely on a chordal instrument to provide interest,
as I didnt have two instruments to provide contrasting sounds,I had to think even more carefully,about the balance of subject matter,the pace or speed of the songs etc,I had a great night and sold lots of cds etc.
I also feel that I can sing better when only having to concentrate on singing,.
although, sadly not many clubs in England would book an unaccompanied singer baecause many people would prefer to listen to sounds than words.http://www.dickmiles.com