How do performers of "classical" music ensembles typically dress?

Which type of notes dip or blend by a quarter or half step and swoop up to higher pitches to make jazz sound more like a human voice

What is the name of the song released by the artist "owl city" in 2009 as a hit single? (it was also one of the dankest memes of 2017)

Does anyone know how to get better at drawing? (any advice is welcome and needed)