In 1969, the Bee Gees released "First of May" as the A-side, with the flip side being "Lamplight" on which Robin sang the lead. Robert Stigwood chose "First of May" to be the A-side. No other songs were released from the album "Odessa". Shortly after Robin announced his solo plans, the Bee Gees released their first single without him, "Tomorrow Tomorrow". Barry also worked with Samantha Sang, co-writing and producing two songs "The Love of a Woman" and the B-side "Don't Let It Happen Again" released on Parlophone. He also produced songs for P.P. Arnold including "Bury Me Down By the River" (released as a single) which were originally recorded by the Bee Gees for their 1970 album. In the summer of 1969, Petersen left the group which now only featured Barry and Maurice as the Bee Gees. Pentangle drummer Terry Cox replaced Petersen to complete another 12 songs, but only five songs were released in the album.