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Calculate delay time in milliseconds from BPM for rhythmic delay effects. Quarter, eighth, dotted, and triplet note delay values.
Calculate EQ center frequency, bandwidth, and Q factor for parametric equalizer settings. Octave and semitone spacing for mixing.
Calculate RT60 room reverb time using the Sabine equation. Estimate acoustic treatment needed for studio and live room design.
Add semitones to pitch class number (C=0, C#=1... B=11). Wrap at 12 for octave equivalence.
New pitch class = (Original + Semitones) mod 12Transposing up a fifth adds one sharp (or removes one flat). Down a fifth adds one flat.
Major keys follow circle of fifths; +7 semitones = up a fifthChoose notation with fewer accidentals. Transpose G major up 1 semitone → G# major (8 sharps) or Ab major (4 flats) — prefer Ab.
F# major ≡ Gb major (6 sharps vs 6 flats)Updated: July 2026
Song in E major transposed down 3 semitones → C major — comfortable for alto range without losing song character.
Song in G with capo on 3rd fret plays in Bb major. Transpose chart: written G shapes sound Bb.
Trumpet in Bb reading C major sounds Bb major. Written part must be transposed up 2 semitones from concert pitch.
Transposing music changes the key by shifting every note by the same interval. Enter the original key and number of semitones (or target key) to calculate the transposed key with correct sharp or flat notation.