An open-ended question and suggestion, "is your mixtape going to be good enough? perhaps it's time to add. . . " it's a set up for either the start of a strong song or another word or phrase such as bass or funk or whatever.
An alternative take of the open-ended question and suggestion, "is your mixtape going to be good enough? perhaps it's time you added some. . . " and then a song can start or another word or phrase be added to the end.