From the many musical lives of artist Glenn Donaldson emerges The Reds, Pinks and Purples, a project that sifts out the purest elements of pop music and in the process chronicles the point of view of an assiduous songwriter. His new album “Uncommon Weather” is both an elusive portrait of San Francisco –– during one of its fluctuations as an untenable place for musicians and artists –– and also a self-portrait of a songwriter who has dispatched another treasured collection of timeless sounding DIY-pop songs.

Self-recorded and mostly self-performed, the music on “Uncommon Weather” continuously reckons with the influence of The Television Personalities’ Dan Treacy, whose own forays into drum-machines, echo, and reverb in the early 1990s is an important reference point. Paul Weller, Robert Smith, and Sarah Records also come to mind. The album arrives with grateful timing, quick on the heels of the recent EP “You Might Be Happy Someday” and alleviating, for a brief window at least, whatever it is that keeps us coming back to this elemental music. Donaldson imagines his listeners are just like himself: fascinated and addicted to the spiritual power of uncomplicated pop classics.