"The Natural Acoustic Band were a British acid-folk band, formed in 1969 in Milngavie, Glasgow,
Tom Hoy (born 5.2.1950, in Glasgow Strathclyde, Scot) — Guitar and Vocals
Robin Thyne (born 1.11.1950, in Newcastle upon Tyne, Northumberland) — Guitar, Bongos, Bass and Tenor Recorders, Tambourine, Clacker and Vocals
Krysia Kocjan (born 10.8.1953, in Craigendoran, Scotland, Died 21 February 2007 in Portland, Oregon, America) — Vocals, Guitar,Glockenspiel, Bells
The band only produced two albums and one single (reaching No 1 in the Melody Maker folk charts). They were on the bill on three occasions at London's Marquee Club: November 17, 1971 (supported by Shape of the Rain), 12 April 1972 (supported by Gnidrolog) and 22 November 1972 (supporting Brewers Droop)."
Read more here on Wiki http://en.wikipedia.org/wiki/Natural_Acoustic_Band