Just got back from a church weekend and I was asked to play bass for it with a guitarist. We decided to have a practice a few days beforehand and that went OK although there were issues with some. So we get there and decide next morning to have a band practice. We chose the songs we were asked to do that morning so i set up as I would for band normally and we began to play.....bearing in mind that for these songs I had to follow the keyboardist's bassline. I sounded like pure garbage. Knowing nothing about guitars, I hadn't realised that when a capo'ed chord is played, the actual result is shifted from what it would normally sounds like. For example, a capo'ed D in one song was an F# for me. And nearly every song needed a capo. So I ended up hardly being able to play, simply because it was taking so long to work out what I was supposed to play, so I ended up doing backing vocals for a lot of songs. I am such a crap bassist.....I should have been able to transpose.