'Final cadence' for "Andante moderato" (string quartet)

Today's music is just one measure.

This is the final measure of 'Andante moderato', an 8-min string quartet performed several times by Acacia Quartet across NSW and Victoria last year and also on ABC Classic FM.

Despite all these performances, however, I never properly notated the final measure, which I instructed verbally at rehearsals. It requires two special effects. I finally did it today because someone asked to see the score.

And though I refer to it as a 'final measure', it also functions as the start of the next section of my perpetual work-in-progress String Quartet. 

figment 2 - for clarine

Good morning from NYC!
Today I have a cadenza I wrote for Mozart’s Piano Concerto K.491 in c minor.
The cadenza morphs into some quotations from Mozart’s piano music.
I was really inspired by a piece Frederick Rzweski write for my teacher Jerome Lowenthal called cadenza. And the point was to be able to perform the cadenza as a separate entity to the concerto.  Here’s my take.