In Density 21.5, Edgard Varèse (“va-REZZ”) introduced this symbol to denote a key click, in which a wind musician makes an indefinite pitch by “slapping” a key on their instrument. For 10 points each:
[10h] Name this symbol that, in a different context, instructs string musicians to play a pizzicato note using their left hand, such as in the ninth variation of Paganini’s 24th Caprice.
ANSWER: a plus sign [or a cross]
[10e] In some Baroque music, a symbol resembling a plus sign indicates this type of ornament, which may end with a nachschlag (“nock-shlog”). Classical cadenzas end with long examples of these rapid oscillations between two adjacent notes.
ANSWER: trill [or shake; reject “tremolo” or “tremolando”]
[10m] Music theorists sometimes use a plus sign to denote this chord quality. Raising the fifth of a major triad by a half step yields a triad with this quality, which also names “Italian,” “German,” and “French” sixth chords.
ANSWER: augmented [or word forms such as augmentation; or aug; accept augmented sixth chord]
<Classical Music>