Available to Supersonics Pro members. Members can instantly print the full book or individual pieces, or order a professionally printed hard copy through the Member Bookstore.

Level: Mid Elementary

Face the Bass Bosses once more and conquer the mysteries of the bass clef. Return to the Depths plunges students into a bold, low-register sound world where every piece feels like a cinematic battle. Clear signpost notes and a focused note range keep reading approachable while the music stays thrilling.

Written in A, E, and D minor, the pieces introduce punchy “power-chord” patterns, driving rhythms, and expressive articulations that build confidence fast. Challenges ramp up gradually so students feel like they’re levelling up—strengthening fluency, control, and storytelling with every win.

Pro members also get each piece transposed into every minor key, making this book incredibly flexible. Backing tracks and extras are available inside the Supersonics Plus app.

(Tip: turn your phone sideways to view the samples)

Getting your copy
  • Supersonics Pro members: Print it immediately or order printed copies in the Member Bookstore.
  • Not a member yet? You can purchase individual pieces below with instant digital delivery.