HALO was (is?) a two-piece improvised noise/doom band.
Beginning as a four-piece in the late 1990s, HALO self-released a number of albums on CDR while swiftly metamorphosing to something else entirely.
Shedding members and instrumentation along the way, HALO signed with Relapse Records in 2002, reissuing one album, and releasing a follow up, before drifting apart due to geographical differences.
Streaming and Download help