But make sure you have something. A swarm of mosquitoes can ruin an otherwise excellent night of observing the heavens. Good Music Observing should be a relaxing experience. Be sure to bring along some good music to help the minutes click by. If you are making long exposure photographs through your telescope, you could be sitting at the eyepiece for up to an hour for each photo.
Music definitely helps to make the experience a little more enjoyable.
Many astronomers seem to enjoy the spacey or celestial sounding music to enhance the observing experience. You can find a lot of these tunes in the New Age sections of most music stores as well as the nature stores in the malls. Music by Ray Lynch and David Lange are among my favorites. Be sure to be courteous to others. If you are observing with a group, make sure everyone shares your taste in tunes.