next brownie:
definition of the cadenza in the eighteenth century
we have many sources for a definition of the cadenza in the eighteenth century. some theorist/composer/performers of the time included johann quantz (1752), leopold mozart (1756), cpe back (1759), and daniel gottlieb turk (1789). because they were of the same period as mozart, their writings will be considered primary and of first importance. quantz and bach were of the 'old school' of thought in that they believed an instrumental cadenza should be most like a singer's cadenza and capable of being executed in a single breath. gb mancini, a singing teacher at the imperial court in vienna (though realizing that the one-breath rule was often broken) added his ideas in that there should be a relationship of improvised passages to the thematic material. during the eighteenth century there was no uniform opinion on this.
*insert "quantz suggested that a singer who could not think of something new with which to begin a cadenza should choose instead one of the most attractive motifs from the aria and build a cadenza from it. if the record of the century's greatest composers is anything to go by, js bach, his sons, haydn and mozart all composed non-thematic cadenzas and only from about 1779 onwards do mozart's cadenzas begin to quote or develop thematic material from the concerto to which they belong."
the improvisational beginning of the cadenza with voice led to other instruments following suit whenever a fermata was encountered. in fact, the word 'cadenza' is also called 'cadence' or 'fermata.' in italian; arbitrio, point d'orgue. during this quiet time where the accompaniment pauses or sustains a pitch or chord, a passage is played by a soloist that is either improvised or written out over the penultimate or antipenultimate note or harmony of the cadence. "although a cadenza may appear elsewhere, it most typically ornaments a prominent tonic cadence, such as one before a final *ritornello or *coda...if improvised , it may be indicated by a fermata in all parts." an example of this can be found in measure 742 of the mozart k 595 piano concerto. here, the cadenza should commence with the right hand b-flat, continue at the pianists discretion, and conclude with a trill and chord, as written, to signal the orchestra's reentry.
trills signalling the beginning and ending of cadenzas are mentioned by quantz in 'the art of playing the german flute.' he speaks of trills in the context of the messa di voce. the player is warned not to use the embellishment too often. there were guidelines from tromlitz that summed up the standard useage of trills at the end of the eighteenth century. "the vibrato (bebung) is a wave-like, quivering movement that is introduced on a long held-note, pauses, and on the note before a cadenza." once the cadenza is established by this trill, there is a general theory about what should follow written by daniel gottlieb turk in his 'klavierschule' (1789). he lamented the practice of making ... (have to finish copying later)
sources so far : michael thomas roeder, a history of the concerto(oregon: amadeus press, 1994) 29. badura skoda, eva and william drabkin, 'cadenza' in the new grove dictionary of music and musicians, ed. stanley sadie et al, 4:783:790 (new york: mac millian publishers limited, 2001) 783-790. the new harvard dictionary of music, compiled by don michael randell, (belknap press, cambridge, mass. , 1986) 123. brown, clive, classical and romantic performing practices from 1750-1900, (oxford: oxford university press, 1999) 543 quoting unterricht, 239-40.)
ps feel free to critique (am leading up to discussing the disappearance of some of the original cadenzas - and mozart's normal composition practice of writing them out - even for himself - as an improviser - using them like lead-sheets - and trying to keep them in a separate folder from the piano concertos).