<P> Developed during live performances , an early version was premiered several months before recording began ; new material was recorded in two sessions in 1972 and 1973 at Abbey Road in London . The group used some advanced recording techniques at the time , including multitrack recording and tape loops . Analogue synthesizers were prominent in several tracks , and snippets from recorded interviews with Pink Floyd 's road crew and others provided philosophical quotations throughout . Engineer Alan Parsons was responsible for many distinctive sonic aspects and the recruitment of singer Clare Torry . The album 's iconic sleeve was designed by Storm Thorgerson ; following keyboardist Richard Wright 's request for a `` simple and bold '' design , it depicts a prism spectrum , representing the band 's lighting and the record 's themes . </P>
<P> Developed during live performances , an early version was premiered several months before recording began ; new material was recorded in two sessions in 1972 and 1973 at Abbey Road in London . The group used some advanced recording techniques at the time , including multitrack recording and tape loops . Analogue synthesizers were prominent in several tracks , and snippets from recorded interviews with Pink Floyd 's road crew and others provided philosophical quotations throughout . Engineer Alan Parsons was responsible for many distinctive sonic aspects and the recruitment of singer Clare Torry . The album 's iconic sleeve was designed by Storm Thorgerson ; following keyboardist Richard Wright 's request for a `` simple and bold '' design , it depicts a prism spectrum , representing the band 's lighting and the record 's themes . </P>
when was dark side of the moon written
when was dark side of the moon written
in 1972 and 1973
in 1972 and 1973