Swedish transcendental metal act Schammasch have premiered their forthcoming three-part, 100-minute long opus Triangle. The ambitious full-length will be released this Friday, April 29, via Prosthetic Records. Pre-order here. The band has teamed up with Terrorizer, Rock Hard and CVLT Nation to stream the album, which each site streaming one-third of the album. Follow the links above to check out the massive record now.