Google Play Music starts automatically and only occasionally when I use Google Voice through with BT

[homerun79]

This has happened about 10 times total now so it's really only once every 20 times it seems to me, but I will hold the button any of my bluetooth devices to activate Google Voice commands, and before I even say what I want to do, Google Play Music fires up, and starts playing the track I was playing last! Anyone else experienced this kind of thing? Haven't really spent much time troubleshooting it but I don't recall any settings anywhere that could create this issue...

Thanks!