Download and Install:
pip install --upgrade pianoplayer
To be able open a 3D interactive visualization, install vtkplotter the command line:
pip install --upgrade vtkplotter #to enable sound you may need to: sudo apt install libasound2-dev pip install simpleaudio
Windows 10 user can place this file: pianoplayer.bat ontheir desktop (edit the path to your local anaconda installation).
Example command line from terminal:
pianoplayer scores/bach_invention4.xml --verbose -n10 -rvm
will find the right hand fingering for the first 10 measures, pop up a 3D rendering window and invoke musescore.
The output is saved as a MusicXML
file with name
pianoplayer # if no argument is given a GUI will pop up (on windows try `python pianoplayer.py`) # Or pianoplayer [-h] [-o] [-n] [-s] [-d] [-k] [-rbeam] [-lbeam] [-q] [-m] [-v] [--vtk-speed] [-z] [-l] [-r] [-XXS] [-XS] [-S] [-M] [-L] [-XL] [-XXL] filename # Valid file formats: MusicXML, musescore, midi (.xml, .mscz, .mscx, .mid) # # Optional arguments: # -h, --help show this help message and exit # -o , --outputfile Annotated output xml file name # -n , --n-measures  Number of score measures to scan # -s , --start-measure Start from measure number  # -d , --depth [auto] Depth of combinatorial search, [2-9] # -rbeam  Specify Right Hand beam number # -lbeam  Specify Left Hand beam number # --verbose Switch on verbosity # -m, --musescore Open output in musescore after processing # -b, --below-beam Show fingering numbers below beam line # -v, --with-vtk Play 3D scene after processing # -z, --sound-off Disable sound # -l, --left-only Fingering for left hand only # -r, --right-only Fingering for right hand only # -x, --hand-stretch Enable hand stretching # -XXS, --hand-size-XXS Set hand size to XXS # -XS, --hand-size-XS Set hand size to XS # -S, --hand-size-S Set hand size to S # -M, --hand-size-M Set hand size to M # -L, --hand-size-L Set hand size to L # -XL, --hand-size-XL Set hand size to XL # -XXL, --hand-size-XXL Set hand size to XXL
pianoplayer in a terminal
(or double click the pianoplayer.bat file),
- press Import Score (valid formats: musescore, MusicXML, MIDI, PIG)
- press GENERATE (
- press Musescore to visualize the annotated score
- press 3D Player to show the animation (Press
F1to quit the application)
Example output, as displayed in musescore:
(If fingering numbers are not clearly visible use
If vtkplotter is installed, click on
3D Player for a visualization. You will see the both hands playing but hear the right hand notes only.
Chords are rendered as a rapid sequence of notes.
How the algorithm works:
The algorithm minimizes the fingers speed needed to play a sequence of notes or chords by searching through feasible combinations of fingerings.
One possible advantage of this algorithm over similar ones is that it is completely dynamic, which means that it takes into account the physical position and speed of fingers while moving on the keyboard and the duration of each played note. It is not based on a static look-up table of likely or unlikely combinations of fingerings.
Fingering a piano score can vary a lot from individual to individual, therefore there is not such a thing as a "best" choice for fingering. This algorithm is meant to suggest a fingering combination which is "optimal" in the sense that it minimizes the effort of the hand avoiding unnecessary movements.
Parameters you can change:
- Your hand size (from 'XXS' to 'XXL') which sets the relaxed distance between thumb and pinkie.
- The beam number associated to the right hand is by default nr.0 (nr.1 for left hand).
You can change it with
-lbeamcommand line options.
- Depth of combinatorial search, from 2 up to 9 notes ahead of the currently playing note. By default the algorithm selects this number automatically based on the duration of the notes to be played.
- Some specific fingering combinations, considered too unlikely in the first place, are excluded from the search (e.g. the 3rd finger crossing the 4th).
- Hands are always assumed independent from each other.
- In the 3D representation with sounds enabled, notes are played one after the other (no chords), so the tempo within the measure is not always respected.
- Small notes/ornaments are ignored.