by Kirsty Evans
An Index of Birds (Silber Records)
An Index of Birds is weird, a bit trippy, and kind of awesome. With a number of songs that are entirely instrumental, it won’t appeal to everyone, but if you like gentle, experimental rock, then this may be right up your alley. The few songs that do have vocals are equally lovely, with a haunting tone that’s quite distinctive.
At Hotel Utah (500 4th St., San Francisco) on April 9. 9 p.m., $10