A species of grace note, indicated by a small note with its stem crossed through, viz.,The prin. note retains its accent and almost all its time‐value. The auxiliary note is theoretically timeless; it is just ‘crushed’ in as quickly as possible before the prin. note is heard. Some renowned pianists even play the 2 notes simultaneously, immediately releasing the acciaccatura and retaining the prin. note.
Sometimes 2 or more small notes are shown before the prin. notes, and then they generally amount to acciaccature (being in most cases perf. on the ‘crushed‐in’, or timeless and accentless, principle), although they have no strokes through their tails, and although the names double or triple appoggiatura are often given them.Note a combination of acciaccatura with spread chord:perf. as though notated—Although the acciaccatura is theoretically timeless, it nevertheless must take a fragment of time from somewhere. In the cases shown above (which may be considered the normal ones) it takes it from the following note. In 2 other cases, however, time is taken from the preceding note: