alla capella
/ˌalə kəˈpɛlə/ /ˌɑːlə kəˈpɛlə/Music
adverb
In the style of music composed for a church or chapel, especially the restrained style of 16th cent. choral music typified by Palestrina; specifically (a) = a cappella; (b) = alla breve.
Origin
Mid 18th century. From Italian alla capella, lit. ‘in the style of the chapel’ from alla + cappella.