On Turns in the South, his recent two-CD set, Aaron Ximm delivers raw and filtered documentation of his travels. The highlight is a 40-minute track titled “Madurai Mani Fold” (MP3). Described by Ximm as an “epic of introspection,” it is an exercise in minimalist process. The lengthy track is built from but a mere few seconds of a recording he made in India. The piping sounds, which gain momentum, only to occasionally relax, over the course of the piece bring to mind the linear chords of Philip Glass’s instrumental compositions and the pulsing work of Steve Reich. It’s one of four tracks on the album, all of which are available for free download at Ximm’s website, quietamerican.org.