Browser-based metronome providing precise timing, multiple click sounds, a speed trainer, polyrhythms, a drone synth and MIDI output for external synths.

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SuperTime Ultra is for musicians who want a browser-based tool for keeping time, learning tricky rhythms, or practising passages at a controlled pace. It runs without an installation and brings a metronome together with a library of drum grooves for practicing with more than a plain click. Set a tempo by hand or tap along to a song, then choose a time signature, accents, subdivisions, and swing feel. The speed trainer raises the tempo in steps, while silent bars let you test whether you can keep the beat without hearing the click. A polyrhythm generator lets you hear and follow two pulse patterns at once. Musicians can also save songs in setlists with their tempos and grooves, making the tools useful for practice, lessons, and rehearsals.

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