I am currently learning music theory so I found some assignments related to writing down tones in sheet.
However I am a bit confused when it comes to different note names.
For example I have to write down "H" and "h1" note. Are they the same note, on the same place inside sheet (the third line)?
Also is F sharp 1 between first two lines and F sharp 2 on the fifth line?
And what's the difference between capital D and d note? For example D2 and d.