Putting the ‘art’ into ‘rock’ can be a licence for pretension, but happily, not in this case. The ‘antenna’ in question is a ‘sound installation’ for the Edinburgh Sculpture Workshop on the shore at Granton, and the performers include Tommy Perman from experimental music-makers Found, who have previously produced a chocolate 7” single, and along with academic Simon Kirby, interactive band-in-a-box Cybraphon. The two are joined here by songwriter Rob St. John on this collection of ambient instrumentals, a dozen tracks which merge into one another. It’s a lazy, calming listen, as repeated chord patterns mingle with the sounds of birds, foghorns and wind in the sails of fishing boats near the Newhaven shore, urging us to heed the call of the sea.