To jam and learn the simple chords for 윤도현 - 가을 우체국 앞에서 chords, practice playing D, Em, Bm, C, G, D, G and C in sequence. Start with a comfortable 77 BPM and as you become proficient, aim for the song's BPM of 154. Tune your capo to accommodate your vocal range, referencing the song's key: G Major.