English Art/Literary Idioms / Maxims / Sayings

After only minimal interactions with the man called Rithma, it is obvious that he is one of the few free spirits remaining in dance music today. His silly yet mature persona enables him to enjoy life, love people and remain content while quietly taking house music to the next level. He clearly falls slightly left of the center, not only in his presentation of records as a DJ, but perhaps more prominently, in his efforts as a producer. Incorporating the psychedelic elements of his self-proclaimed second home of San Francisco with organic instrumentals and his own down-to-earth vocals, time and again he achieves a unique balance of dance floor concoction and pure listening pleasure.

Again, i think, i have a sentence which has some "extra" meaning, can you please kindly explain it to me? Thanks in advance!