NF4

I tried to use the abc guide lines.



Treble Clef-a sign on a staff, indicating the position of G above middle C on the second line

Bass Clef-a sign on a staff, indicating the position of F below middle C on the fourth line

Pitch- to determine or set the key of (a tune, an instrument, or the voice)

Octave-the eighth tone of an ascending or descending diatonic scale, or a tone seven degrees above or below a given tone in such a scale

NF3

Rest-a measured interval of silence between tones

I just removed four half notes and put four rest.

NF2

 I just merged two quarter notes to make a half note three times

Half Note- a note having half duration of a whole note