To write down the notes you want to play you need to use the standard format of writing notes (for guitar), you don't need to know the name of every single note. Just write down name of the string and the fret on which is the note located (it must be written down together). As a separator always use ",".

Example:

G0, C3, E9, A2

Every song needs the right timing between notes to sound perfect. To do that on my website, just type in numbers that represent time (in milliseconds) between notes. The first note is always going to be played in 0 milliseconds, so you don't need to type in the timing for the first note. As an example, if you type in Notes: "G0, C0", Breaks: "1000", it means G0 is going to be played right away and the C0 is going to be played in 1000 milliseconds.

Example:

Notes: C5,C5,C8,C5,C3,C1,C0
Breaks: 670,300,400,300,300,860