Art Reblitz asks about the early QRS 58-note roll compass [220523
MMDigest]. I have a Melville Clark Orpheus Grand player reed organ that
plays these rolls. While the keyboard has a 61-note compass only 58 of
those notes are played by the roll.

The roll is fully chromatic starting with C two octaves below Middle C
and continuing up 58 notes to A. The rolls measure 10-3/8" wide.

Regards from the south coast of Oregon,

Bruce Newman - Newman Restorations
Gold Beach, Oregon