In preparation for his collaboration with Hans-Joachim Roedelius two years ago ("Selected Studies Vol. 1") British singer-songwriter Lloyd Cole recorded plenty of electronic music that hasn't been released yet. "1D" is a collection of the best pieces of this "unused" music. None of the pieces involves the use of a piano keyboard or a computer, except to record it. Some modulations were executed by hand. Most were generated by programmed sequencers and logic. Each piece is a self contained electronic circuit.