Latch by Disclosure Featuring Sam Smith

The song is Latch by Disclosure featuring Sam Smith. Section 0:00 - 0:49 is composed of the same beat throughout the verse, in the background. Then from 0:50 - 1:18 the beat changes, to something much more legato, slowing things down throughout the bridge into the chorus, creating a build up. 1:19 - 1:50 is the chorus, and the vocalist jumps up to a much higher octave, surprising listeners. 1:51 - 2:23 goes back to the same melody as in the first section, as it moves through verse two. 2:24- 3:09 goes back to the more legato melody and rhythm, but it is extended for a longer period of time, adding even more build up to the chorus. 3:10 - 3:40 is the same as the chorus before, but after, during 3:41 - 3:58, the vocalist layers his voice so that one is harmony and one is melody in a sort of call and response form. 3:39 - 4:17, which is the end, goes back to the same as the first section, and then fades out to finish the song. This song did not identify as one clear form, but rather changed form throughout. In the beginning, it was ostinato in the first section, then it was sequence during the chorus, and even had a call and response thrown in towards the end.