The interrupted tune

Original fiction extract.

The ice-cream van stopped its tune while the tractor passed through the narrow lane. For a minute, the tractor’s engine was the only sound beside the village green. Then the van’s music resumed. Children who had been watching the huge tyres turned back towards the serving window. I had been halfway through choosing a flavour and discovered that I could not remember the name I had wanted. The driver waited patiently while the tune began its familiar round again.

Identify a word or phrase from the extract which suggests the same idea as the words in bold:

After the passing tractor had gone, the van’s music began again after a pause.