Nathan Dalrymple playing Quarterflash’s harden my heart Okt 8, 2016 Cover, Cover My, Cover Retro, Druhe Slunce, Quarterflash’s harden my heart cover. Like 0 Thanks! You've already liked this « ‚HARDEN MY HEART“ ( QUARTERFLASH cover) by Ace & Roxy Rock n Blues Expedition Band » Harden my Heart – Quarterflash Acoustic (Guitar and Vocal cover)