Sound Plates

Sound Plates

(Metal Plates, Astro Discs)

Constructed and dubbed "Astro Discs" by John Bergamo, and used in his piece, "On the Edge." Long-ringing, complex, ethereal sounds produced by striking the discs over timpani and moving timpani pedal.

17", 23”, 32", 44"
Price/Day $
50-75 each or 160 / set
A1, G#2, G3, C4

Click for more info

Pitches are approximate.


  • A quick and informal demo of one astro disc struck over a timpano, with pedal changes.

Please note: these are just examples, as playing technique and mallet/stick choices often have a great effect on the timbre.

These sound excerpts, to the best of our knowledge (unless otherwise noted), include this actual instrument from our collection. To hear the instrument yourself, or to let us know of any errors, please contact us.