Use a high-gain "Lead" or "Brown" channel. For a Boss Katana , keep the gain at noon or higher, cut the mids slightly, and push the treble.
The song is technically in E standard, but Iommi often used light strings and slightly loose tuning for his signature heavy feel. iron man tab
Use your bridge pickup with volume and tone set to 10. Use a high-gain "Lead" or "Brown" channel
Once you have the shape down, use a backing track or the original recording to master the rhythmic timing. Use your bridge pickup with volume and tone set to 10
The core of the song is built on power chords. While you can play them as single notes, using the full two-finger shape provides the "doom-heavy" sound the song is known for. Fret Position (Low E / A strings) Strike once and let ring. 2 10th / 12th Move shape up 3 frets, strike twice. 3 12th / 14th Slide up 2 frets and strike twice. 4 15th > 14th Rapidly slide/hammer between these 3 times. 5 10th > 12th Strike D5 twice, then slide up to E5 and strike twice. Nailing the Tone To get Iommi's "monster" tone, you'll
Use a touch of reverb, but keep it "dry" to maintain the riff’s punchy clarity. Pro Tips for Success