I noticed a very common thing John Williams does. My knowledge in music theory is pretty limited.
The only thing I could name are lots of passing notes and chromaticism? - but maybe there is a special name/term for what he's doing? first piece the flute, second the keyboard and strings, third the upper strings. up and down, up and down...
excuse me if it's a heavily loaded question- maybe you can simply pinpoint what I should research? I know that maybe you could call it a sequence but it kinda doesn't help me. https://voca.ro/1apccSSIRKNt these are three excerpts