Is it normal for a dedicated singer in a band not to know chord progressions? I’m filling in this Friday for a band whose bassist moved away unexpectedly. The guitarist is in Brazil, not getting home until Thursday night and can’t be reached. I got the set list and asked the other two members (drummer, and singer) what the chord progressions were on a few of their songs. The drummer understandably didn’t know, but I assumed the singer would. When I asked her, she became kind of angry and said she didn't know. I thought a voice was considered an instrument. This is my first time playing in a band with a dedicated singer. All the other bands I've been in were either instrumental, or one of us took care of the vocals.