From the recording Celtic Purple
Instrumental Celtic melodies that are best known for being used as hymns (Be Thou My Vision and Come Thou Font of Every Blessing).
Performed in a Celtic-folk style with with violin, guitar and uilleann pipes (Irish elbow pipes).
Come Thy Fount starts at one minute, and I am hearing organ towards the end of the song holding drones or something of that nature like the pipe does when it comes in. Chords are C G F C except for one part that has an a minor chord (third line of hymn) so in that line the chords are am G F C. and we do a tag (repeat least 4 bars at end)