General remarks about double stops:
3-note chords:
4-note chords:
Pizzicato chords:
3 and 4-note chords are always arpeggiated when played on solo instruments,
however chords written for an orchestral section will usually be played divisi:
It is best to avoid writing chords in fast music unless the cellist is an extremely good player and has plenty of time to practise the piece in advance!