Hi XXX46XXX,
That's no metric modulation. The melody is 11 beats long. You can count it as two bars of 4 and one of 3, or a bar of 4 and a bar of 7.
Up till 0:27 seconds, the snare backbeat is playing on all the numbers I've put in bold, which is beat 3. Or if you count as a bar of 4 and 7, the last snare is on beat 7.
Counted as two bars of 4 and one of 3
1234 1234 123
Counted as a bar of 4 and a bar of 7.
1234 1234567
When the drums double up at 0:27, the counting remains the same. But because of the nature of it being in odd time, the snare backbeat falls on the upbeats then the downbeat, alternating every cycle of 11 beats. This is what makes it feel strange and more complicated than it actually is. All it actually is, is a simple quarter note groove that you would normally play in 4/4 with the snare on 2 and 4. But as there's a bar of 7, the snare count changes from the even numbers to the odd numbers, back and forth.
And at 0:37 to 0:39 seconds, there is a phrase played in a single bar of 7 and then it resumes back to the 4,4,3//4,7 cycle. Hope this helps.
Double time
Counted as two bars of 4 and one of 3
1234 1234 123, 1234 1234 123
Counted as bars of 4 and 7.
1234 1234 567, 1234 1234 567