I assume tzlaine's list is encompassing gui's list.
tzlaine:
gui:1)Button Click - includes clicks on regular buttons, check boxes, radio buttons
2) Button Rollover - includes moving the mouse over regular buttons only
3) Item Select - selecting/deselecting an item in a drop-down list or listbox
4) Item Drop - dropping a drag-and-drop item into a listbox
5) Alert - when a warning or error message box pops up
;Galaxy creation menu open
galaxy button click
small galaxy selection
medium galaxy selection
large galaxy selection
huge galaxy selection
spiral galaxy selection
ring galaxy selection
cluster galaxy selection
2 arm galaxy selection
3 arm galaxy selection
clutter galaxy selection
;main
minimizing Window
maximizing Window
close window
planet SideBar Open
planet Sidebar Close
sitrep button click
menu button click
turn button click
;Fleet
mouseover fleet (galaxy)
select fleet (galaxy)
select (Fleet window)
unselect (Fleet Window)
;planet sidebar
primary balanced select
primary farming select
primary mining select
primary industry select
primary research select
secondary balanced select
secondary farming select
secondary mining select
secondary industry select
secondary research select
colonize click
open planet buildmenu
planet select
Things I see to add:
*Galaxy Setup, in the textbox where the user can type his/her Empire name. I'd have a sound for every keystroke, which underlines each letter the user has typed. And maybe a sound when the textbox looses focus as if hitting Enter.
*Planet sidebar, when you click the planet, the type of environment sound is played (i.e. Ocean planet - guibaah's Ocean2.ogg)
*Fleet Popup, in addition to Fleet click, then window maximize, there could be a fleet sound (just like the planet sounds). There could be multiple sounds, if the types of ships in the fleet are known.
-warship is present - sound1 (i.e. menacing sound) (could even subdivide this into small, meduim, large)
-colonization ship only- sound2 (i.e. hopeful sound)
-scout only - sound3 (i.e sonar sound)
*Turn In Progress, the main sound tracks should fade out and when going to Turn Processing there should be sound clip that would loop since the processing time would never be the same with each turn.
One other thing, I'm not sure tzlaine's events are considering clicking 'Colonize', different from clicking 'Turn'. My suggestion is to have different sounds for different buttons. Buttons like TURN, ENTER COMBAT or any other game transitions, should be louder than a click and break up the current sound with a good transitional sound so the player knows the game is taking them into a new section.