Default Disable music

Hello! I have searched the forums as well as my device but cannot find the setting/option to stop my music from playing if my screen is off and let's say I am putting my phone in my pocket and bump my volume buttons, music starts playing, so annoying. Volume button is linked to this and do not enjoy it at all.. Pretty simple yet I am clueless.. Thanks for any advice on how to disabled this feature..

HTC one m8 vzw
hit ThAnKs if I was helpful!!!