Final answer:
The statement is true; an E major triad and an E diminished triad differ by one note, the third, where the E major has a G# and the E diminished has a G natural.
Step-by-step explanation:
The statement that only one note differs between an E major triad and an E diminished triad is true. An E major triad is composed of the notes E, G#, and B. On the other hand, an E diminished triad consists of the notes E, G, and B. The difference between the two triads is the middle note; the E major triad has a G# while the E diminished triad has a G natural. Essentially, the E diminished triad is an E major triad with the third note lowered by a half step.
The statement is True. Only one note differs between an E major triad and an E diminished triad.
An E major triad consists of the notes E, G#, and B. In contrast, an E diminished triad consists of the notes E, G, and Bb.
The only difference between the two triads is the third note. In an E major triad, the third note is raised one half step to G#, while in an E diminished triad, the third note is lowered one half step to G.