You can take the pianola roll and place it inside another pianola – the note length and dynamic will be the same, but the overall tone or timbre will be different because it’s being played by a different pianola.The information on the pianola roll tells the pianola which notes to play, how long or short each one is and how loud or soft they are.A pianola roll controls the pianola and tells it what to play.A pianola roll does not make any sound itself.MIDI file is the digital version of a pianola roll.The file can sound different when opened in different software apps because each app has its own unique set of instruments.The software uses its own sounds to play back the file.When you open this file with a music software program, the software knows what to play.Music file that contains information about notes: which pitch, when to play them, how to play them, velocity, length.It simply tells the software what to play and how to play it, the same way a pianola roll tells a pianola which notes to play and how to play them It’s easy to edit notes on a MIDI track.MIDI stands for Musical Instrument Digital Interface.The track contains data about notes and playback sound.

A MIDI track is created by a software instrument.

Bandlab export midi