HTC One (M8) for Windows
Play Music Files - HTC One (M8) for Windows
Play Music Files - HTC One® (M8) for Windows®
To add music to the device, refer to the following for assistance:
Sync Media - Windows Phone App
Download and Install Apps
From the Start screen, swipe left to display the Apps list.
(located in the lower-right; may require scrolling to the bottom of the Start screen).
If necessary, swipe left or right to locate the collection screen.
Swipe left or right to view music in the following categories:
If applicable, tap an artist, album, playlist or genre.
Choose a song.