musical sign (accidental) raising the pitch of a note by one chromatic semitone (factor 2^(1/12))
A sharp is a musical symbol that raises the pitch of a note by one semitone, which is the smallest interval in Western music. This matters because it allows composers and musicians to precisely specify which exact notes to play, enabling them to write and perform music in any key or with any combination of pitches they want.
AI-generated from the Wikipedia summary — may contain errors.
via Wikipedia infobox
In music, sharp – eqv. dièse (from French) or diesis (from Greek δίεσις) – means higher in pitch. The sharp symbol, ♯, indicates that the note to which the symbol is applied is played one chromatic semitone higher. The opposite of sharp is flat, indicating a lowering of pitch. The symbol derives from a square form of the letter b.
Examples
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).