I think it starts in 4/4, and then switches between 6/4 and 3/4 a few times, and finally finishes in 4/4. Specifically: 00:00 - 00:58 4/4 00:59 - 02:07 6/4 02:08 - 02:35 3/4 02:35 - 03:36 6/4 03:37 - 04:05 3/4 04:06 - 07:09 4/4 Disclaimer: I'm just recently starting to get a grip on music theory and applying it in practice so I might be wrong! Also, I think you could technically just say that the entire middle section is in 6/4 and ditch the 3/4 notation.