Just discovered that hammering the tinplate seals runs much better in the rhythm of the Terminator 1 and 2 main theme.
Or more accurately, 3 fragments of it.
Initial cautious seeking and hitting: (3-3. 3-3. 1... 3-3-1.1) x 2
Beginning of continous hits: 2-1-2... 2-1-2...
Continuous hits: 2-1-2.1.1... 2-1-2.1.1...2-1-2.1.1...