Job hunting is stressful. If you're working and job-hunting, you're anxious to make your move. If you're not working, you're under pressure to get a new job fast. As a job-seeker it's easy to forget that you're making as big a decision as your next employer is.
If a manager hires you and doesn't like your brand of jazz, he can cut you loose and find someone new. That will cost money and time, but