"I Bought a Flat Guitar Tutor" is a song by 10cc appearing on their 1977 album, Deceptive Bends.

The song is quite short and often thought of as a novelty piece amongst fans. The lyrics to the song are all puns for musical terminology. Whenever Eric Stewart sings the name of a chord the chord is played as part of the music to the song. The chart below attempts to explain the complex idea.

• I bought A = A major (A C♯ E)
• [A] flat = A Flat major (A♭ C E♭)
• [A flat] diminished = A Flat diminished (A♭ Cb E♭♭)
• Responsibility (responsibilitE)= E Major (E G♯ B)
• You're de ninth = D9 (D F♯ A C E)
• Person to see = C Major (C E G)
• To be suspended = Bsus4 (B E F♯)
• in a seventh = A7 (A C♯ E G)
• [a seventh] major catastro- = A Major 7th (A C♯ E G♯)
• phe = E major (E G# B)
• It's a minor = A minor (A C E)
• point, but Gee = G major (G B D)
• [but gee,] Augmented = G augmented (G B D♯)
• [Gee, augmented] by the sharpness of your = G sharp augmented (G♯ B♯ D♯♯)
• See what I'm going through (C#) = C# Major
• A (A) = A Major
• to be (B) = B Major (B D♯ F♯) with you E major (E G# B)
• in a = A Major
• [in a] flat = A flat
• by the sea = C Major, C Major7, C 7, C & ad g