Main divisions of ch 4, “Playing”

1.Writing for solo instruments
2. Chamber Music
3.Orchestral Music
4. Accompanying the Voice
5. Orchestral Accompaniment of the Voice
6. Choral Accompaniment
7. Concerti

As a church musician I observed examples of many of the topics discussed in ch. 4.
We never had a case of the choir accompanying an instrument (6) or performed a concerto (7), but did perform 1 through 5.

In most of our church services, there was a meditative interlude before communion. This often featured an instrumental or vocal solo.

One of the settings for the Lent liturgy was accompanied not by the usual organ but instead by 3 musicians — cello, bass, and piano. I think that might be considered a chamber group. We also had a guest appearance by a local Medieval group, with one instrument on each part (one soprano recorder, one alto recorder, one tenor recorder etc).

There were two years we had “singalongs” of Handel’s Messiah, complete with full orchestral accompaniment. The instrumentalists were from a local high school orchestra.