Play a G chord for the lyrics, "Oh Danny Boy, the..." Play this chord by holding down the first string-third fret, the fifth string-second fret, and the sixth string-third fret. Leave the other strings open as you strum the first seven beats.
Play a G7 chord for the next four counts, during which the lyrics go, "pipes, the pipes are..." To play G7, play a G chord, but change the first string from the third fret to the first fret.
Play a C chord for the next beats, during which the lyrics go, "calling, from..." The C chord is made by holding the second string-first fret, fourth string-second fret and the fifth and sixth strings in the third frets (the rest of the notes are open).
For the lyrics, "glen to..." play a D7 chord for two beats. D7 is played by holding the first string-second fret, second string-first fret, and the third string-second fret. Play the fourth and fifth strings open, but don't strum the sixth string at all.
Play the G chord again for three counts on the lyric "glen"; play the C chord for one beat on the word "and"; play G for two counts on "down the..."; on the lyric "mountain," play an E-minor chord for two beats. Play E-minor by holding down the fourth and fifth strings-second frets, and play the other strings open. On the word "side," play a D chord for four counts, then a D7 for one count.
Continue to play the D7 for three beats as you sing the words, "The summer's..."; play G for for four counts on "gone and..."; play G7 for four beats on the phrase, "all the flowers are..."; play C for six counts on, "dying, it's..."; play an A-minor chord for two beats on "you, it's...". A-minor is played by holding the second string-first fret, the third string-second fret, and the fourth string-second fret; the other strings are open during the strum.
Play a G for "you must," which has two beats; play a D7 chord for four counts on, "go and I must..."; finish the section A of the song by playing G for two counts on the word "bide," followed by two counts of C, then one more beat of G.
Begin the lyric "but" on the end of the last beat of section A, during which you were strumming a G chord; follow with two beats of D7 on the phrase, "come ye...."; play G for four beats as you sing, "back when...."; sing "summer's" as you play C for two counts; play D for two counts along with the words "in the...."; follow with G on the words, "meadow, or," as you strum six beats.
Play D7 for two counts on the lyrics, "when the...."; play E-minor for four counts as you extend the word "valley's"; play a C chord for two beats with the words, "hushed and..."; follow with a G chord for two beats with the words, "white with..."; continue by singing the word "snow" as you strum a D chord for four beats.
Play a D7 chord for four beats as you sing, "Tis' I'll be..."; strum a G for four counts with the phrase, "threre in..."; play a C for four counts on "sunshine or in...."; follow with another G on "shadow" for five beats.
Play an E-minor chord for three beats on "Oh Danny..."; play a G for six counts on, "Boy, oh Danny..."; play a C for four counts on "Boy, I..."; play a D for four counts on "love you..."; finish with a G chord for two beats on the word "so," followed by C for two beats, and one more count of G.
Repeat sections A and B for the second verse.