It starts when he sings "I want to believe in you dear"

Riff 1
Gb|-------------------------------------------------------------------|
Db|-------------------------------------------------------------------|
Ab|4-4-4-4-4-4-4-4-4-2-2-2-2-2-2-2-2-0-0-0-0-0-0-0-0------------------|
Eb|--------------------------------------------------2-2-2-2-2-2-2-2--|

"I want to believe"

Riff 2
Gb|-----------------|
Db|-----------------|
Ab|7-7-7-7-7-7-7-7--|
Eb|-----------------|

When he sings"I want to believe in you dear" play this:

Riff 3
Gb|---------------------------------------------------------------------------------|
Db|6-6-6-6-6-6-6-6-7-7-7-7-7-7-7-7-9-9-9-9-9-9-9-9-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7--|
Ab|---------------------------------------------------------------------------------|
Eb|---------------------------------------------------------------------------------|

Riff 3
Gb|---------------------------------------------------------------------------------|
Db|--------------------------------6-6-6-6-6-6-6-6-7-7-7-7-7-7-7-7-9-9-9-9-9-9-9-9--|
Ab|7-7-7-7-7-7-7-7-9-9-9-9-9-9-9-9--------------------------------------------------|
Eb|---------------------------------------------------------------------------------|