Jim Reeves and Patsy Cline, who both died in separate plane crashes, Patsy in 1963 & Jim in 1964, had never recorded together during their lifetimes. In 1961 both singers had recorded their own solo versions of 'Have you ever been lonely' & released it on various albums. In 1981 Owen Bradley, who was Patsys original producer, electronically created a "duet" of 'Have you ever been lonely' featuring both singers by lifting the solo vocal performances off their original stereo tapes, synchronizing them and recording a new backing track. In January 1982 it became a No 5 hit on the Billboard Hot Country Singles chart, and No 1 on the RPM Magazine Country Singles chart. Source : Wikipedia