The current catch repertoire dates from the Lant Collection copied around 1580 and containing 57 catches and rounds. This was followed by the first printed collections edited by Thomas Ravenscroft, which include most of the Lant pieces and most of those in the Melvil collection. Taking all three sources together this amounts to about 145 catches or rounds with a few part-songs. The contents list in all three Ravenscroft publications refer to "the songs in this book". "Pammelia" has a running page header "Canons in the unison", but the sections are headed "rounds or catches of 3 (&c) voices". "Deuteromelia" introduces part-songs labelled as "Freemens songs". "Melismata" divides the contents into City Rounds and Country Rounds as contrasted with part-songs labelled Court varieties, City Conceits and Country pastimes.