Portable PianoRollComposer

Portable PianoRollComposer is a basic MIDI sequencer that emulates piano keys while it reads and writes MIDI files. Users can play and write music, and since it is the portable version of PianoRollComposer, the tool can be saved on a USB stick and fired on any host computer.

Basic graphical user interface

There aren't many buttons in the main program's layout, except the number of drop-down menus in the application's top bar. There, users can set the MIDI output, configure instruments, enable a virtual keyboard, and so on.

Built for piano compositions

The overall functions of Portable PianoRollComposer are very simple and intuitive: you only have to place some musical keys on the audio track and hit play. This tool renders all your notes in real time based on a default tempo speed that can be changed whenever you want.
Since this works with MIDI music rendering options, any note that you place on the audio track can be played like a different instrument. Besides piano keys, users can add percussion and many other similar effects. The MIDI output comes only as the standard Microsoft GS Wavetable Synth while the input can be selected based on what other instruments you decide to plug into your computer.
In case you plan to record your songs for a MIDI keyboard, Portable PianoRollComposer can either keep the notes played in the same position or change the instrument channel, and even add a metronome. Music can also be altered by beats per minute to sound just as you initially played it on your device. Other options like chords, sustain pedal, dynamics, and effects can also be added to the audio track.
Although written text can be attached to the music sheet for future reference, projects can be saved only to MIDI files. This feature keeps the song just as you played it, and it allows you to send it to other people as well. However, all your written indications are lost.

Conclusion

Portable PianoRollComposer is a fast and efficient MIDI-based piano player. It allows users to compose songs quickly for all sorts of emulated instruments and add other effects for sound enrichment options. The ability to save projects to MIDI audio files also enables you to share music with friends, being, this way, a perfect application for the entertainment of rookies and professional musicians alike.