To learn 斉藤由貴 - (ヴィンテージmix) いつか chords, your first step should be understanding these chords - F#m, Bm, A, Bm, A, C#, F#m, A, Bm and C# in sequence. Start slow with ChordU's Free Tempo controller and increase your speed as you get comfortable. With an eye on the song's key D Major, set the capo that best suits your vocal range.