I have an assign that convert this sheet to 'Roland's pitch' and 'Yamaha's pitch'. I have no idea about what is Roland's pitch and Yamaha's pitch, neither how to do it. Please let me know.
using this image.
Middle C, the C written below the treble clef and above the bass clef, has MIDI note 60. Conventionally, this note is referred to as C4. However, Yamaha refers to MIDI note 60 (middle C) as C3. Another major music equipment company, Roland, refers to this note as C4, as is conventional.
Therefore, the first note in your first diagram is B4 in “Roland pitch” and B3 in “Yamaha pitch”.
To find the “Roland pitch” of a given note, use your second diagram; the “Yamaha pitch” of a note is the same with the number being one lower.
BTW, I found out about this while using Apple’s Logic Pro X. By default this uses the name C3 for MIDI note 60 (middle C). This totally confused me and prompted me to Google an explanation. As it happens, Logic allows you to choose either “Roland C4” or “Yamaha C3” for MIDI note 60, hence why I knew what you were asking about...!