Whole note (or "breve", hence the British name "semibreve") lasts twice as long as a whole note. A related symbol is the whole rest (or semibreve rest). It usually applies for an "entire measure", but may occasionally mean a rest for the duration of a whole note, in longer time signatures such as or . (An entire measure rest is drawn centered within the measure, whereas a rest lasting for a whole note is aligned to where the note would be.) Whole rests are drawn as filled-in rectangles generally hanging under the second line from the top of a musical staff, though
Two hundred fifty-sixth note long as the two hundred fifty-sixth note. After this would come the one thousand twenty-fourth note (eight flags or beams), the two thousand forty-eighth note (nine flags or beams), the four thousand ninety-sixth note (ten flags or beams), and so on indefinitely, with each note half the length of its predecessor. The shortest note value to have ever been used in a published work is the 1024th note (notated incorrectly as a 2048th) in Anthony Philip Heinrich's "Toccata Grande Cromatica" from "The Sylviad", Set 2, written around 1825; 256th notes occur frequently in this piece, and some 512th notes also