The experimental duo of Pete Astor and David Sheppard, otherwise known as Ellis Island Sound, return with an insistent, percussive set that makes use of African-influenced guitar lines, dub effects and wailing trombone. Seven years ago, they tried their hand at avant-garde acoustic styles with The Good Seed, recorded in a Norfolk chapel, using folk instruments and drum machines, but their new and mostly instrumental studio set veers from pounding riffs to globally influenced ambient styles. The opening Nairobi/Koln sets that mood with glockenspiel effects and driving, insistent waves of percussion set against drifting trombone and deadpan vocals. Elsewhere, there's a fine, slinky guitar riff and trombone dub effects on We Do Not, an atmospheric mood piece, Offices at Night, and the slower Schwitters in Lakeland, on which they fade into gentle background music.