No specific info about version 5.1. Please visit the main page of Menu Bar Controller for Sonos on Mac Informer.
Sonos (formerly Sonos Desktop Controller) allows you to control software for the Sonos Music System.
The Sonos Controller lets you control all your music and rooms from the desktop
iTunes Volume Control allows you to control the iTunes volume.
Allows you to see multiple digital clocks set to different time zones.
iOS7 WiFi Bar allows you to change the WiFi icon into the Signal Dots in iOS 7.