This is recopilation of main AppleScript commands and related resources. Feel free to add new useful scripts.
AppleScript is a scripting language that provides direct control of scriptable applications and scriptable parts of the Mac OS. A scriptable application is one that can respond to a variety of Apple events by performing operations or supplying data You can use AppleScript scripts to perform repetitive tasks, automate complex workflows, control applications on local or remote computers, and access web services. Because script writers (or scripters) can access features in any scriptable application, they can combine features from many applications.
source: developer.apple.com
Get current Spotify track
tell application "Spotify"
set currentTrack to name of current track as string
set currentArtist to artist of current track as string
return currentArtist & " - " & currentTrack
end tell
Skip next track
tell application "Spotify" next track end tell
Previous track
tell application "Spotify" to previous track
Play/Pause track
tell application "Spotify" to playpause
Quit Spotify
tell application "Spotify" to quit
DisplayDialogs
display dialog "your message here"