Input: concept: Duane Allman  answers:  ['Happily Married Man', "Goin' Down Slow", 'Mean Old World (feat. Duane Allman)', 'Have You Ever Loved a Woman (feat. Duane Allman)', 'Mean Old World', 'Black Hearted Woman', 'No Money Down', 'Trouble No More']
Output: 

 what songs did duane allman sing?