Although as previously stated the pieces do sound different due to their different backgrounds and instruments. However the pieces can be related as well.

In both pieces there are repeated themes that are played.  In Rent the lyrics: "No day but today" are repeated and are even included in the round when the female parts (soprano and alto) spilt up singing along with the males (baritone and bass.) The female parts sing : without you. The males sing: No other way. 

The most remembered part is when the upper voices sing: "I die without you." Where the lower voices sing: "No day but today." Since those are the two major themes in the piece and throughout the play in general.

This round takes place during the time frame of: 1:30 and continues until the end of the piece at 2:06 where all the voices harmonize to say "No day but Today."

When looking at Morales they also repeat themes, however their pieces do not have lyrics.  For example in the beginning at 1:01 where they start the theme using drums and marimbas. This theme is later displayed at 5:48, except the only difference is there is a ritunalla and crescendos in the piece.