Topmusicanswers
A 4-3 suspension is when you resolve from one chord to another where normally a 4-3 resolution occurs, like G7-C (f to e), but you delay the movement of the 4th degree to the 3rd. So you move all the voices from G7 to C, except for the F, which results In Csus4.
What is a 4-3 suspension?
Answer: For anyone in our TV audience who hasn't taken music theory in school, a 4-3 suspension is a case in which a triad appears with a fourth in the place of what should be its third, and the fourth then slides down to where it ought to be. ... Here's an example of a 4-3 suspension, from Bach.
