Thank you Daniel,
Yes indeed, those are all VSTs. However, today's deep sampling virtual instruments from real musicians playing real instruments in the best recording studio are almost like recording the real deal. Moreover, Logic Pro (Protool, Cubase and other DAW as well) allows to add real time expressivity on the instruments, which is something you can't get from a notation software such as Finale or Sibelius.
Cheers,
Syrel