EmitSound[snd] emits the sound snd when evaluated. EmitSound[{snd_1, snd_2, ...}] emits each of the sounds snd_i in sequence.
FrontEndEventActions is an option for the notebook front end that gives a list of actions to perform when specified user-interface events occur.
In
(Built-in Mathematica Symbol) In[n] is a global object that is assigned to have a delayed value of the n\[Null]^th input line.
InputNotebook[] gives the current notebook into which keyboard input in the front end will be directed.
LinkPatterns[link] gives a list of the patterns for which definitions were set up when the external program associated with the specified MathLink connection was installed.
Most
(Built-in Mathematica Symbol) Most[expr] gives expr with the last element removed.
NotebookInformation[] gives a list of properties of the current evaluation notebook.NotebookInformation[notebook] gives a list of properties for the specified notebook.
NotebookPrint[expr] sends a notebook containing expr to your default printer.NotebookPrint[notebook] sends the specified notebook to your default printer. ...
NotebookSelection[] represents the current selection in the current evaluation notebook in the front end.NotebookSelection[nb] represents the current selection associated ...
Rest
(Built-in Mathematica Symbol) Rest[expr] gives expr with the first element removed.