[youtube]http://www.youtube.com/watch?v=ItNqPI-c99s[/youtube] Jazz vocalist Jacqui Naylor’s calling card is her unique approach to cover material. The San Francisco-based singer works with rock songs, adapting them to the jazz idiom not only in rhythm and instrumentation but sometimes by altering the melody and/or chords to create something familiar but new. Naylor’s at Snug Harbor tonight, and here she is in a fan-made photo montage accompanied by her version of R.E.M.’s “Losing My Religion.”