Extra Menu: Seek
From Audacity Development Manual
The Extra > Seek menu provides menu equivalents for the short and long seek commands.
These commands skip the playback cursor backwards (left) or forwards (right) by a short or long period of time. You can change the length of the default short or long period to be skipped at "Seek Time when playing" in the Playback Preferences.
You cannot seek backwards to left of the current position of the playback cursor.
Short Seek Left During Playback Left
Moves play head left by 1 second.
Short Seek Right During Playback Right
Moves play head right by 1 second.
Long Seek Left During Playback Shift + Left
Moves play head left by 15 seconds.
Long Seek Right During Playback Shift + Right
Moves play head right by 15 seconds.