The Bermuda Triangle were a strange post-hippie psych-folk band from New York that self-released one eponymous record in 1977 (Radioactive did the "unofficial" CD reissue in 2006). Comprising the folksinging duo of Wendy and Roger Penney, with mystery lady "Sam" on fiddle and drums, the band had evolved from '60s sunshine poppers Euphoria, and thousands of West Village basement pass-the-hat jams. The band was perhaps most noted for its odd instrumental lineup - bass, drums, fiddle, and electric autoharp, often heavily effected. This combination brings a weird and sometimes uncanny vibe to such material as Aerosmith's "Dream On" (Wendy here a dead-ringer for Heart's Ann Wilson).
Dream On on youtube
Hear The Bermuda Triangle on WFMU here
The Bermuda Triangle wiki here
Casa de Bermuda Triangle here