3. "Assuming a treble clef sheet, the "G" note is where the cross is" In response to In response to 0
The black spaces are sharps/flats and the note go up the page. Not sure if that's what you're asking, or are you asking about full, half, quarter notes, ties, etc.
I play bass, so I'm playing off a bass clef (F) whenever I get my hands on sheet music, which is rare.