Bell-bottoms, which were fashionable in the past, have made a market comeback. which type of fashion life cycle is this?

It depends on what type of third separates the three notes.for example: if you have two mayor thirds is an "aumented chord"if you have two minor thirds is an "diminued chord"if you have one mayor first and then one minor is a "mayor chord"and inverted is a "minor chord"

Would it be an oboe?