Folk music and indie folk have become more mainstream in recent years, to my surprise. The uplifting and soothing vibrations of this clean and global form of music are something we should all have more of in our lives. Two years ago, Lee Leffler (guitars, keyboards, vocals and lyrics), along with Michael Frackleton (drumming and bass), formed the Boston-based band, Dream of a Man...

So, Vadim Militsin’s Logica Abstracta project delivers “Amber”. Four tracks of pure ambient drift. No rhythmic anchors, just textures that shimmer and dissolve like heat haze off distant tarmac, or maybe the condensation trail of a plane miles overhead. They call it ‘sonic jewelry’, which feels strangely apt. These aren’t grand, sprawling statements; they’re intricate little things, polished smooth, catching the light in unexpected...