Biography
There are at least two artists named ptf.
1. A Japanese symphonic jazz rock combo PTF (officially ptf, written in lower-case letters) were founded as a quartet by Keisuke TAKASHIMA (violin), Takeya KITO (keyboards), Hiroyuki ITO (bass), and Yusuke SEKI (drums) in 2009. Gained musical experience through lots of gigs mainly around Tokyo quite inspired by 70s progressive rock, jazz rock, and heavy metal scene (according to what Keisuke says), finally their debut album "percept from ..." was released in February 2013 via Musea Records.
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2. Russian hip hop artist.
Biography text from Last.fm, available under CC BY-SA.