Scala Tuning Inspector

Inspect bounded SCL degrees and an optional explicit KBM mapping without uploading tuning data.

Inspection only: this tool does not judge tuning correctness, instrument compatibility, loudness, or instrument safety. Frequencies depend on the exact SCL/KBM interpretation shown. When KBM is absent, no keyboard mapping is assumed unless you explicitly select the offered default.

Scala text

SCL text (required)

KBM text (optional)

Mapping when KBM is blank

MIDI note minimum

MIDI note maximum

Scale inspection

Parsed scale degrees
Degree	Lexical entry	Cents	Ratio	Adjacent interval	Equal-division target	Deviation

Keyboard mapping

Mapped MIDI notes
MIDI	Status	Scale degree	Frequency	Indexing evidence

Documented indexing rule

For a nonzero map size: relative = midi − middleNote; cycle = floor(relative / mapSize); slot = modulo(relative, mapSize); degree = map[slot] + cycle × formalOctave. Formal octave zero means the SCL count. Map size zero is linear: degree = relative. An x or omitted trailing slot is unmapped. Frequency is referenceFrequency × 2^((cents(degree) − cents(referenceDegree))/1200). Degree cents use octave extension by the SCL period.