She is a singer-songwriter, who was active in the 1980s in France.
In the early 1980s, Muriel Dacq released "L'Enfer à l'envers" and "Ni pourquoi ni comment".
The singer was married to Alec Mansion, a member of the trio 'Léopold Nord & Vous 'which had success in 1987 with the song "C'est l'amour", produced by Dacq.
Her biggest hit was "Tropique", released in France in 1986. It reached number 6 on the SNEP singles chart and earned a Silver disc for a minimum of 200,000 copies sold.
In 1995, she tried to revive her singing career recording a new album Ohé du vaisseau, and a single entitled "Un peu + d'amour", under the pseudonym of Black & Dacq.