Step-by-step guides for getting real work done in your browser — removing vocals, finding a song’s BPM, making acapellas, cutting and merging audio, and pitch-shifting cleanly. Practical, tool-by-tool, and free.
Find a sample's key, count the shortest semitone move, and shift it with a pitch changer so the loop sits in key with your beat. Free and in your browser.
Line up a recording with the chord shapes you want to play: capo math, a fret chart, and when to use a pitch changer instead of moving the capo.
Use a pitch changer to move a song into your vocal range: find the notes that strain you, test shifts by ear, pick the right semitones, and export the result.
Transpose any song to a new key with a free pitch changer: find the current key, count semitones, shift without changing tempo, then preview and export.
How to find the key of a song: run a free key finder in your browser, read the confidence score, check it by ear, and fix results that look wrong.
Match music to your pace: BPM ranges for running, cycling, HIIT, walking and yoga, plus how to check each track's tempo with a free online BPM finder.