Pitch Detector: What Note Is This?
Play a note or hum a melody into the microphone and see in real time which solfège step (1-7, do re mi) it is — including sharps and flats.
Numbered Notation · Solfège · Note Names
Black keys are written with # (sharp) or ♭ (flat), e.g. C♯ = #1 = ♭2. The steps 3-4 (Mi-Fa) and 7-1 (Si-Do) are semitones; the rest are whole tones.
Which do-re-mi note are you hearing?
Turn on the microphone, play a note or hum a melody, and the screen instantly lights up with the note's numbered-notation digit (1-7), its solfège name (do re mi fa sol la si) and its note name (C-B). Black-key notes show both sharp (#) and flat (♭) spellings. The needle gauge shows how many cents you are from the exact pitch, with sharp/flat hints.
Numbered notation uses 1-7 for the seven scale degrees. With 1=C: C=1(do), D=2(re), E=3(mi), F=4(fa), G=5(sol), A=6(la), B=7(si). Steps 3-4 and 7-1 are semitones; the rest are whole tones. For beginners, quickly mapping what you hear to a solfège name is the first step of ear training, sight-singing and transcribing.