n this paper, a support tool for piano rehearsal
is presented. The system analyses a given piano polyphonic
recording to find the times, pitch and duration of the notes
and figures played, taking into account the possibility of playing
more than one note simultaneously as well as covering the whole
piano frequency range. In order to do so, the system uses
an onset detection algorithm to segment the input signal into
partitions which are then analysed in the time and frequency
domains. Then, the system correlates the data extracted from
the partitions with the score of the original piece, identifying
the positions and type of the mistakes performed by the user,
and providing her/him with the corresponding feedback. The
experiments conducted showed that the application is capable
of analysing a given recording and indicate the musician the
mistakes made.
