Listen to Struggle - Heavy Metal - 140 BPM - Key of Gm online. Struggle - Heavy Metal - 140 BPM - Key of Gm is an English language song and is sung by Easy Jam. Struggle - Heavy Metal - 140 BPM - Key of Gm, from the album Hard & Heavy - Drums, was released in the year 2015. The duration of the song is 4:07. Download English songs online from JioSaavn.