Hello Chris,
Il 01 Gennaio 1998, Giovedi alle 12:31, Marco Pragliola ebbe la visione di 
Chris Carroll che cosi' disse:
 MP>> E|-0-+-0-+--+--+-0-0-0-+--+---|-+--+--+--+--+--+--| That is pretty m
 CC> I am new to both guitar and this conference, and I have a few
 CC> questions, I realize the numbers represent the frets (read the messages
 CC> on that a few minutes ago), but my 1st question is how do you know how
 CC> long to hold each note (4, 2, 1 beat...) And second what is the extra
This is not a music sheet: tablature is almost always an approximation (just 
like my English :) . Generally, the lenght of the notes is not shown in 
tablatures, and you have to figure it out by yourself, listening to the 
record you want to play. But sometimes the situation is different: it depends 
from the author of the tab. Some tabs have note durations written like below:
!-----------------
!---------------2-
!-----2-----------
!-----2-----2-----
!-0-------0-------
!-----------------
  1 . 2 . 3 . 4 .
This is a measure: the numbers on the bottom show the division of this 
measure into 4 beats. The points show the division in 8ths. So, focusing on 
the durations, the thing above means a quarter note, then two quarter notes 
played togeter, an 8th, a 1/4, an 8th.
Other tabs have a finer division of the measures (f. ex. "1 . & . 2 . & . 3" 
Etc.)... as I said, it depends all on the guy who wrote the tab, often there 
are no durations at all.
 CC> letters mean? For Example on line G what does "2su4" mean?
Guitar playing needs many symbols to show all his features on a music 
sheet/tablature. Every tab has its own symbology, though many symbols are 
quite standardized, and every tab *should* have an explanation of its symbols 
at its beginning or end.
These letter are used to represent particular actions like sliding, tapping, 
hammering on, pulling off, bending, making artificial harmonics, natural 
harmonics, pinch harmonics, semiharmonics, palm muting etc.
Sayonara!
  _  _     _ _
-=|\/|     |/  =- M. "Muk"
-=|  |.(_).|\_.=- Pragliola
  The MuzikMan!
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