Use this music calculation for a precise timing, pitch, tuning, MIDI, dynamics, or audio-engineering conversion under a stated tempo and reference convention.

Attack Seconds (s)

Required number input.

Decay Seconds (s)

Required number input.

Sustain Hold Seconds (s)

Required number input.

Release Seconds (s)

Required number input.

Attack plus decay plus release duration in seconds; sustain hold duration must be provided explicitly. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Total Seconds (s)

The resulting total seconds returned as a number.

• Results depend on tuning reference, temperament, note naming, tempo map, meter, MIDI implementation, sample rate, level reference, weighting, and artistic performance. Equal temperament and ideal timing are not universal musical requirements.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Keep the reference pitch and timing grid explicit, verify against the target instrument or DAW, and use listening tests for perceptual decisions.

• Grace Note Duration Subtraction

  Remaining duration of a main note when a grace note borrows a specified number of seconds from it.

• Note Value Duration Seconds At Bpm

  Duration in seconds of a note expressed as quarter-note multiples at a quarter-note BPM.

• Dotted Note Duration Calculator

  Duration of a single-dotted note: one and a half times its undotted duration.