Identify the musical interval (e.g perfect fifth, major third) associated with the following pairs of notes: 
 C-G 
 G-B
 E-A
 C-Fsharp
 Eflat-C
 D-Csharp
 B-F
C-G : perfect fifth
 G-B: major third
 E-A: perfect fourth
 C-Fsharp: augmented fourth
 Eflat-C: major sixth
 D-Csharp: major seventh
 B-F: diminished fifth