A-flat
G-sharp's other name
A-flat is a musical note one semitone below A, equivalent to G-sharp on keyboard instruments.
It serves as the tonic of A-flat major, a key with four flats that appears frequently in Romantic piano literature: The sonata opens in A-flat.
The term combines the note name with flat, indicating the pitch is lowered.
Keyed percussion instrument
- keyboardArray of input keys
- fingeringNote-playing hand technique
- scaleMeasure of relative size
- arpeggioSuccessive chord tones
black key · chord · triad · octave · register · bass clef · treble clef · sheet music
Sonically identical, spelled differently
- G-sharpPitch between G and A
- concert pitchStandard tuning frequency
- tuningAdjusting pitch accuracy
- frequencyRate of recurrence
semitone · transposition · chromatic · temperament · intonation · accidental · key signature · solfège
piano
Keyed percussion instrument
black key · arpeggio · chord · triad · octave · register · bass clef · treble clef · sheet music · notation
enharmonic
Sonically identical, spelled differently
- G-sharpPitch between G and A
- concert pitchStandard tuning frequency
- tuningAdjusting pitch accuracy
frequency · semitone · transposition · chromatic · temperament · intonation · accidental · key signature · solfège · microtonal
relative minor
Key sharing accidentals, sadder
- BeethovenGerman classical music giant
- ChopinPolish Romantic pianist-composer
- nocturneContemplative keyboard piece
ballade · sonata · polonaise · waltz · romantic · expressive · warm · rich · mellow · dark