Note Entry and Instrument Parts: 2 seperate Newbie Questions

Hi,
I'm trying to decide what to buy: Notion or Symphony Pro. My question is about entering notes in Notion. When you play the notes on the keyboard, as they appear, do you hear the pitch? In the official video, there is only cheesy background music overlaid on it. In the Symphony Pro video, as the demonstrator touches a virtual piano note, I can hear the pitch.
Also, if I need to create a trumpet part in Notion, do I still need to think in concert pitch? Or can I write it out Asian the trumpet key. For example, I want the trumpet to play D #F and A. Do I have to input that as C E and G?
I'm trying to decide what to buy: Notion or Symphony Pro. My question is about entering notes in Notion. When you play the notes on the keyboard, as they appear, do you hear the pitch? In the official video, there is only cheesy background music overlaid on it. In the Symphony Pro video, as the demonstrator touches a virtual piano note, I can hear the pitch.
Also, if I need to create a trumpet part in Notion, do I still need to think in concert pitch? Or can I write it out Asian the trumpet key. For example, I want the trumpet to play D #F and A. Do I have to input that as C E and G?