Caitanya-caritāmṛta 13.33
cāri sampradāye haila cabbiśa gāyana dui dui mārdaṅgika haila aṣṭa jana
[chaari sampradaaye haila chabbisha gaayana dui dui maardangika haila ashta jana]
Blended reading (Sanskrit + English inline)
cāri sampradāye haila cabbiśa gāyana dui dui mārdaṅgika haila aṣṭa jana
There were altogether four parties of kīrtana performers, comprising twenty-four chanters. In each party there were also two mṛdaṅga players, making an additional eight persons.
My note
Source: vedabase.io