![a1 midi note number a1 midi note number](https://images.reverb.com/image/upload/s--YXiXBh2B--/f_auto,t_supersize/v1551490305/mrdice65eozubohqi3fq.jpg)
![a1 midi note number a1 midi note number](https://jazzomat.hfm-weimar.de/_images/PianoRoll_SteveLacy_EasyToLove.jpg)
It becomes a problem when you work in a complex project where sounds have not been defined for all 10 octaves and you hit a note and hear nothing… Yep, this is what happened to me. This means that for example this line a1 a2 + a3 will compile as a1 Add a2, a3 instead of a0 Add a2, a3 a1 a0 saving a temporary variable and. This is usually not a problem as all most MIDI devices can usually be transposed up or down easily. Route MIDI note on message key number to pfield N as MIDI value 0-127. This means that MIDI note number 0 is C-2 and that the highest note possible is G8 (using MIDI note number 127). In the case of Logic Studio, middle C is C3. It can display frequencies based on any user-defined reference pitch (for A above middle C) between 390 490 Hz (default is A 440 Hz). Since it is able to play sound, it can also be used as an online tuning fork. It turns out that various manufacturers place this middle C at different octaves. This utility calculates the audio frequency and MIDI note name from any MIDI note number. However, the specifications does not say which one is middle C. The graphic below shows the midi note and CC number sent by each. Therefore, MIDI note number 69, used for 440Hz tuning, should be the A above middle C (supposing an equal temperament tuning). The 6 side buttons are fixed and send the same notes regardless of which bank is selected.
![a1 midi note number a1 midi note number](https://jazzomat.hfm-weimar.de/_images/PianoRoll_BenWebster_ByeByeBlackbird.jpg)
The normally included 88 keys have been numbered 188, with the extra low keys numbered 8997 and the extra high keys numbered 98108. Keys shaded gray are rare and only appear on extended pianos. The A5 key is thus one octave higher than A4 since it has. A printable version of the standard key frequencies (only including the 88 keys on a standard piano) Values in bold are exact on an ideal piano. OCTAVES For example, the A4 key has a frequency of 440 Hz. The number beside each key is the fundamental frequency in units of cycles per seconds, or Hertz. The MIDI specification, maintained by the MIDI Manufacturers Association, tells us that middle C is MIDI note number 60. However, knowing which note is which is not always straightforward. This means there are 128 notes (2 7) that can be assigned in MIDI. The MIDI numbering scheme uses 7 bits to identify all the notes. MIDI note numbers are the unique numbers assigned to each note in the MIDI system.