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.
Tombstone Valentine Tombstone Valentine is a studio album released by Wigwam in 1970. While the previous album "Hard 'n' Horny" was more of a jazz influenced album, "Tombstone Valentine" in one of their more pop-ish albums. The album sounds more like the records of the "Deep Pop" era ("Nuclear Nightclub", "Lucky Golden Stripes and Starpose") than the records of the progressive rock era ("Hard 'n' Horny", "Fairyport" and "Being").