Complex sentence: After Gram Parsons'untimely death in 1973, posthumous interest in his music grew, which caused the band's original label, A&M Records, to release the compilation album "Close Up the Honky Tonks".
Split into simpler sentences: After Gram Parsons'untimely death in 1973, posthumous interest in his music grew. This interest caused the band's original label, A&M Records, to release the compilation album "Close Up the Honky Tonks".