{title: text} or  {t: text}: 		
Define text as the song title and apply title fonts defined in options

{subtitle: text} or  {st: text}: 	
Define text as the song subtitle and apply subtitle fonts defined in options

{comment: text} or  {c: text}: 
Define text as the comment subtitle and apply comment fonts defined in options

{comment_italic: text} or  {ci: text}: 
Define text as the comment subtitle and apply comment fonts defined in options forcing the italic mode

{start_of_chorus} or  {soc} and {end_of_chorus} or  {eoc}: 
Define lines between soc and eoc as the chorus and apply comment fonts defined in options

{start_of_block: text } or  {soblk: text } and {end_of_block} or  {eoblk}: 
Define lines between soc and eoc as the text  named block and apply comment fonts defined in options

{start_of_bridge} or  {sob} and {end_of_bridge} or  {eob}: 
Define lines between sob and eob as the bridge and apply bridge comment defined in options

{start_of_tab} or  {sot} and {end_of_tab} or  {eot}: 
Define lines between soc and eoc as the tab area and apply tab fonts defined in options

{two column on} or  {tcon} and {two column off} or  {tcoff} and {column brake}: 
Set (reset) the two column mode. Use the Column Brake for switching between the left and right column.

{new page} or  {np}: 
Force a Page Brake.

{define: chord offset s1 s2 s3 s4 s5 s6} 		(old format)
{define: chord s1 s2 s3 s4 s5 s6 offset}		(new format)
{chord: chord s1 s2 s3 s4 s5 s6 offset}		(optional new format)
Define chord for printing purposes where offset is the fret position and s1..s6 are where to fret the corresponding string. X or x or -1 means that the string is silenced.
The default is the old format and to switch between the new and the old format you can use:

{new_define}
{old_define}