What technique was discontinued during the swing era?                 a.  sliding notes      b.  collective improvisation      c.  soloing      d.  syncopation

It would say that the technique that was discontinued during the swing era was Collective improvisation (option B) This might be because improvisation was connected to Jazz and Free Jazz music. Swing jazz is based on the off-beat or music pulse.

Focus on the shape of your mouth as you get higher the baxk of your throat shoukd open up more and and your stimach should be stiff idf your signing correctly from your diaphragm not your chest