What genre of music  did Loudest Whisper debut on a vinyl record format characterized by a speed of 33 ⁄ rpm, a 12 or 10 inch (30 or 25 cm) diameter, and use of the "microgroove" groove specification?
LP record The LP (from "long playing" or "long play") is an analog sound storage medium, a vinyl record format characterized by a speed of 33 ⁄ rpm, a 12 or 10 inch (30 or 25 cm) diameter, and use of the "microgroove" groove specification. Introduced by Columbia in 1948, it was soon adopted as a new standard by the entire record industry. Apart from a few relatively minor refinements and the important later addition of stereophonic sound, it has remained the standard format for vinyl albums.
RRRecords RRRecords (pronounced "Triple R Records", based in Lowell, Massachusetts) is a used and new record shop. RRRecords is distinguished as being the first American record label to specifically publish underground noise music in the early 1980s, and published the first American vinyl by Merzbow, Masonna, The Hanatarash, Violent Onsen Geisha, and many more artists who have subsequently become well known in the world of noise music. In its first 20 years, RRR has issued hundreds of releases. The label's owner, Ron Lessard, is a tireless supporter of new artists, and created several sub-labels and series to specifically highlight unknown and underground musicians.