signal is a fully open source MIDI editor and player built using React. MIDI (Musical Instrument Digital Interface) instrument digital interface is the most extensive music standard format in the orchestration industry. It can be called "computer-understandable score." It uses digital control signals of notes to record music. Almost all modern music is synthesized using MIDI plus a timbre library. MIDI does not transmit sound signals, but instructions such as notes and control parameters. It instructs the MIDI device what to do and how to do it, such as which note to play, what volume, etc. They are uniformly expressed as MIDI Messages For those who love music, you can use signal to generate a sound signal (save as) by clicking on the open range on the right side. You can also import a MIDI file for further editing or playing it directly.


