Tool to extract, analyze, and convert MIDI files into detailed notes, readable scores, and fully usable musical data with accuracy
Midi Notes - dCode
Tag(s) : Music
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Midi Notes
MIDI Notes Extractor
Answers to Questions (FAQ)
What is MIDI music? (Definition)
MIDI music actually refers to a MIDI file or a set of musical data encoded using the MIDI (Musical Instrument Digital Interface) protocol. It is not an audio signal, but a sequence of instructions describing musical events: notes, durations, intensities, instruments and tempo.
What is a MIDI note?
A MIDI note is a numerical representation of a musical event in the MIDI protocol. It does not contain audio, but instructions intended for a synthesizer.
A MIDI note is defined by several parameters:
— Pitch (note/pitch): encoded by a note number ranging from 0 to 127
Example: 60 often corresponds to C4 / Middle C
— Velocity: attack intensity, ranging from 0 to 127
— MIDI channel: from 1 to 16, used to target an instrument or voice
The duration of a note is not stored directly: it is determined by the time difference between a Note On and a Note Off message.
A MIDI note is therefore a control data, not a sound. The final audio depends on the synthesizer used
What is a MIDI note extractor used for?
A MIDI note extractor is a tool that transforms MIDI data into usable representations in the form of notes.
It can be used to convert a MIDI file into sheet music or to analyze musical structures.
How does the MIDI protocol encode a note?
The MIDI protocol encodes information as binary messages transmitted serially, typically using 1 to 3 bytes.
A note is mainly represented by a Note On or Note Off message:
— Status byte: 0x8n (Note Off) or 0x9n (Note On), where n represents the MIDI channel (0 to 15, commonly used notation)
— Data byte 1: note number (0 to 127)
— Data byte 2: velocity (0 to 127)
Example: 903C64 means Note On on channel 0 (often considered channel 1 in user notation), note 60 (C4 / Middle C) (3C in hexadecimal equals 60 in decimal), velocity 100 (64 in hexadecimal equals 100 in decimal)
How are instruments assigned to MIDI channels?
In the MIDI protocol, channels are used to separate multiple instrument streams. There are 16 channels (numbered 1 to 16, but encoded as 0 to 15).
Drums are fixed to channel 10 in the General MIDI standard; this channel does not contain pitched notes but is used for percussive elements.
How to convert a MIDI note number into a note name?
The conversion of a MIDI note number is based on Euclidean division by 12:
— The octave corresponds to the quotient (integer part) minus 1
— The note corresponds to the remainder (modulo 12):
| 0 | C | 1 | C# | 2 | D | 3 | D# | 4 | E | 5 | F |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 | F# | 7 | G | 8 | G# | 9 | A | 10 | A# | 11 | B |
Source code
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