They then talk about seas in meters, and often barometric pressures, I assume in mb.
The music is spooky and cool. It must be something well known. Violins doing an up and down tempo di valse melody with a sort of descant of flute arpeggios above them, which I guess are summoning breaking waves, whitecaps, foam, whatever. Very cool intro/outro music.
I listen on the SDR of University of Twente's Ham Radio Club, at
websdr.ewi.utwente.nl:8901/
So, in essence, I am listening in real time, to a LW AM radio attached to an antenna in the Netherlands. I get their midnight shipping forecast at about 1900 Tampa time, or 2000 during the summer.
Enjoy the good parts of the BBC, but am saddened by their doctrinaire socialist Kool-Aid drinking news staff.
Do love hearing "The Queen" play at 0000 Z.
The rest of their stuff will drive you nuts, but the Shopping Forecast is one of a kind.
http://weatherfaqs.org.uk/node/78
https://blog.oxforddictionaries.com/2016/02/22/shipping-forecast/