A native of Široki Brijeg, Musa went through all the ranks of the NK Široki Brijeg academy,[1] even featuring once for his youth national team, but started his career at the Croatian 3.
[2] He went on to feature in a series of lower-tier clubs, along with very brief stints at top-tier Sesvete and RNK Split.
HNL until he annulled his contract due to unpaid wages in the summer of 2015.
[4] On 8 February 2021, Musa signed a two-and-a-half-year contract with his boyhood club Široki Brijeg, playing in the Bosnian Premier League.
[5] He made his official debut for the club on 28 February 2021, in a league game against Mladost Doboj Kakanj.