To learn Masoud Sadeghloo - Mosaken chords, anchor your practice on these foundational sequence of chords - Bb, C, A, Bb, A, D, A, Bb, F, Gm, Dm and C. I suggest starting at a calm pace of 60 BPM, and as you gain confidence, approach the song's BPM of 120. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: D Minor.