Your English is fine. I wish I could speak other languages!
Yes, you should have no problems activating SCS cues from your MIDI keyboard and you can try this out in the demo program. What you need to do is
- Click on the menu item View / Options and then select the tab MIDI Devices and Control
- Select the MIDI In device that you will connect your keyboard to
- Tick the checkbox labelled Control cues by MIDI input messages
- Select the Note On radio button
- Select the MIDI Channel that your keyboard is set to send on
These settings will cause SCS to respond to MIDI Notes 1-127 (C#0 - G10, although some keyboards may have a different octave range).
For what you want to do, I suggest you set up your wav and mp3 files as Hot Key cues in SCS, and give them cue labels like Q1, Q2, etc. The number component will be mapped to the MIDI Note number. Numbers do not have to be sequential, eg you can pick numbers that map to the black keys and skip the numbers that map to the white keys.
See the SCS Help for more details on MIDI Cue Numbering, etc, or feel free to ask if anything is not clear.