PRIVACY & LIMITATIONS

Only numbers are calculated. Your music is never monitored.

BPM, reference A4, and MIDI note number are calculated only on the current page. MIDIMap does not request microphone, audio-file, Web MIDI, or connected-device access, and it never plays, records, or uploads sound.

Math reference, not a tuner or MIDI monitor

The tool calculates twelve-tone equal-temperament frequency as A4×2^((note−69)/12), derives quarter-note milliseconds as 60,000÷BPM, and lists whole, half, eighth, dotted-eighth, triplet, and sixteenth multiples. It does not detect real pitch, beats, swing ratio, delay feedback, sample rate, MIDI messages, or device latency; octave names can differ by one between software conventions.

No audio or device data enters the page

Refreshing or closing discards current inputs. CSV contains all 128 note numbers, names, and frequencies under the current A4 reference; the report studio and optional local checkpoints read only the visible numerical summary. They contain no recordings, device identifiers, MIDI events, or project files.

Advertising and local preferences

This page uses Google AdSense Auto Ads. Google may use cookies or similar technologies under its policies. .miluland.com domain cookies sync language, theme, high contrast, a six-item recent-tools list, and up to 16 favorite tool IDs across MiluLand sites. These values never contain inputs, files, or results; the current site also keeps a local compatibility copy.

Local report studio

The report studio reads only the workbench’s currently visible result summary for local preview, Markdown copy, JSON download, printing, and a SHA-256 fingerprint. It never reads input controls or original files and is not persisted unless you choose to download it.

Optional local checkpoints

Only when you explicitly choose Save does the tool write the visible result summary, time, and optional short label to this site’s browser storage, up to five entries. Imported files and input-control contents are never stored; you can export, restore same-tool checkpoints, or clear them at any time. Imports are limited to 128KB and validate the tool, timestamp, summary, and label of up to 80 characters.