Noun
the note designated by the first ledger line below the treble staff; 261.63 hertz
Source: WordNetFor example, the treble clef puts the G above middle C on the second line. Source: Internet
For many transposing brass instruments, this range is written as extending from F♯ below middle C to E two octaves and a third above middle C. The orchestral horn is an exception as it was classically assigned a range beginning at its fourth harmonic. Source: Internet
Horn harmonicas are available in several pitch ranges, with the lowest pitched starting two octaves below middle C and the highest beginning on middle C itself; they usually cover a two- or three-octave range. Source: Internet
In this instance, middle C is centered between the two staves, and it can be written on the first ledger line below the upper staff or the first ledger line above the lower staff. Source: Internet
For example, today most orchestras assign Concert A (the A above middle C on the piano) to the specific frequency of 440 Hz, rather than, for instance, 435 Hz as it was in France in 1859. Source: Internet
For example, A4 (the reference pitch) is the 49th key from the left end of a piano (tuned to 440 Hz), and C4 ( middle C ) is the 40th key. Source: Internet