There is also a tradition in Italy, including Venetian pile driving songs. La Moresca Antica are at the forefront of finding and performing these songs in Italy - I've also seen them at Liverpool. Although their sound is more like an early music group, there music is still very much of their own tradition - rather wonderful, I think, and they are very different to maritime music performers from other parts of the world - woth including in any dissertation, i would think.   La Moresca Antica