Convert frequency to MIDI note numbers at signal-rate (multichannel) Use ftom~ to convert frequency to MIDI note numbers at signal rate Cycling '74 MSP MSP Operators Frequency in Hz TEXT_HERE Frequency in Hz TEXT_HERE Floating-point MIDI Note Number TEXT_HERE TEXT_HERE TEXT_HERE Convert frequency to MIDI note number Outputs the MIDI note number (from 0 to 127) corresponding to the input frequency Base frequency for conversion Sets the "base frequency" used when converting frequency values (e.g., A = 440.). The default is 440. Keyboard Map A set of values for a keyboard map in Scala format:

• Size of map; the pattern repeats every so many keys (example: 12)
• First MIDI note number to retune (example: 0)
• Last MIDI note number to retune (example: 127)
• Middle note where the first entry of the mapping is mapped to (example: 60)
• Reference note for which frequency is given (example: 69)
• Frequency for reference note, as a float (example: 440.0)
• Frequency for reference note, as a float (example: 440.0)
• Scale degree to consider as formal octave, determines difference in pitch between adjacent mapping patterns (example: 12)
• Mapping (example: 0 1 2 3 4 5 6 7 8 9 10 11)

Note: to indicate an unmapped key, you can use either an "x" or "-1". At the end of the list, unmapped keys may be left out. For more information about mappings, visit the Scala documentation. Keyboard Map File The name of a valid keyboard map file in Scala format that has been saved in Max's search path will cause ftom~ to use that mapping. The file extension (.kbm) can be omitted. For more information about keyboard mappings, visit the Scala documentation. Middle Note Number The note number where a Scala scale begins (default 60). Reference Note Number The MIDI note number assigned to the base frequency (default 69). Scale Data A set of values, given as a list, for a scale described using the Scala format. The first value is the count of notes, followed either by floats defining a value in cents (example: 579.47057) or a ratio of two ints (example: 5/4). For more information, see the the Scala documentation. Scale Name A valid scale name from the Scala archive , will cause ftom~ to use the tuning described in that scale for its frequency to MIDI conversion. For this purposes of this attribute, the file extension (.scl) can be omitted. The MIDI note number that corresponds to the input frequency is output as a signal. When an input frequency falls between two pitches, the fractional part of the MIDI value is included.