May 16 (Reuters) - Apollo-backed Concord terminated its

proposed $1.51 billion offer for Hipgnosis Songs Fund ( HPGSF )

on Thursday, according to Alchemy Copyrights, which indirectly

controls Concord.

Nashville-based independent music company Concord's revised

offer was trumped by Blackstone's sweetened $1.57 billion

proposal for the owner of music rights of artists including

Shakira and Blondie.

Blackstone, the world's largest private equity firm, in

April hiked its offer to $1.30 per share to win the Hipgnosis

board's backing for the deal.

Hipgnosis did not immediately respond to a Reuters request

for comment.