(7-string guitars) Nekrogoblikon (7-string guitars) Nickelback (some songs) Nile (drop A) Novembre Oomph! Otto Mann Pain of Salvation (7-string guitars) Pelican Pomegranate Tiger (7-string guitars) Pro-Pain Profiles in Terror (7-string guitar and 6 guitar B tuned) Raintime (7 string guitars) RED (drop A) Rose Funeral Satariel (7-string guitars) Scar Symmetry (7 string guitars, on Symmetric in Design and Pitch Black Progress; have since switched to Drop A tuning) Seventh Void Sepultura (from Roots onward) Seringai Skinless Shadow Over Innsmouth Slayer (some songs) Sleep (on their new single "Leagues Beneath") Slipknot (drop A, on some songs) Soilwork Soulfly Spawn of Possession (6- & 7-string guitars; Jonas Bryssling plays a 6 string, while Jonas Karlsson and Christian Muenzner's parts are written for 7 strings) Spineshank Stencher Steve Vai (7-string guitars) Stone Sour (on "Get Inside") Sun Caged (7-string guitars) Textures (7 string guitars) Theory of a Deadman (on their song "No Surprise" and recent live performances of "Bad Girlfriend") The Project Hate MCMXCIX The Safety Fire (7-string guitars, drop A) To/Die/For Tremonti (on the title track of the album A Dying Machine, and on live performances of songs originally recorded in C tuning) Triptykon Trivium (7-string guitars, on some songs from The Crusade and all songs on Shogun) Type O Negative Unearth (7-string guitars) Universum Unleashed Vehemence Veil of Maya Visceral Bleeding Warning Whitechapel (7-string guitars, only on a few songs) Wicked Sisters Winterfylleth (also use Drop A) Within Temptation (lead guitarist Ruud Jolie uses 7-string guitars, while Robert Westerholt downtunes a six-string to B) Wormed Yanomamo See also List of guitar tunings Guitar tuning Dropped A References Guitar tunings