Old Man Gloom is a sludge band, with many ambient and soundscape elements. They originally formed in 1999 in Santa Fe, New Mexico, United States, but are now based in Massachusetts. The group was formed by Aaron Turner and Santos Montano. By the release of their first album (Meditations in B), Old Man Gloom expanded to include two new members, creating the following and current lineup: Aaron Turner (Sumac, Isis, House of Low Culture, Mamiffer, Jodis): guitar, vocals