Caliope, a musician's helper, provides a virtual one-octave keyboard which can be pointer or key operated, and a simple metronome.

Caliope downloads:
   Caliope  EPOC (Psion)  1.03  2008-03-28  by Reuben Thomas
   Source  EPOC (Psion)  1.03  2008-03-28  by Reuben Thomas
   Caliope  UIQ2  1.01  2007-01-22  by Reuben Thomas
   Source  UIQ2  1.01  2007-01-22  by Reuben Thomas