To start learning James Horner - The Portrait chords, build your understanding on these basic chords - Dm, C, Dm, C, Bb, D, Gbm and E in sequence. I suggest starting at a calm pace of 70 BPM, and as you gain confidence, approach the song's BPM of 140. Given the song's key of F Major, adjust the capo to align with your vocal range and chord preference.