Practice solfege syllables — Do, Re, Mi and beyond — in any key. Switch between movable-Do and fixed-Do systems, add chromatic syllables, and play the scale to hear each syllable in place.
In movable-Do solfege, 'Do' is always the tonic of whatever key you are in, so the syllables describe scale degrees — Do-Re-Mi-Fa-Sol-La-Ti works the same in every key. This system is ideal for hearing function and for sight-singing tonal music.
In fixed-Do solfege, 'Do' always means the note C, 'Re' means D, and so on regardless of key — closer to how note names work in Romance languages. Chromatic notes get their own syllables (Di, Ra, Fi, Se…) built by raising or lowering the diatonic ones.
Solfege is a method of naming pitches with syllables (Do, Re, Mi, Fa, Sol, La, Ti) to make sight-singing and ear training easier. It dates back to medieval music teaching and is still central to music education today.
Movable Do helps you hear how notes function within a key and is popular for teaching tonal harmony and sight-singing. Fixed Do treats syllables as absolute note names and is common in conservatories and Romance-language countries. Many musicians learn both.
Raised notes end in 'i' (Di, Ri, Fi, Si, Li) and lowered notes end in 'a' or 'e' (Ra, Me, Se, Le, Te). For example, the note a semitone above Do is Di, and a semitone below Re is Ra.