Tempo, key, the chords bar by bar, and the gear behind the sound.
Tempo, key, time signature and scale are free on every record, always — measured from the audio, not guessed. Opening a record's harmony, chord chart and production suite counts as one record, whether we analysed it three seconds ago or three months ago. Once a record is yours, it's yours: reopening it never counts again, and it stays readable even if you cancel.
A one-time link, no password to remember.
Your plan, your records this month, and what you have opened.