The Soundcloud team did a great job with their embed audio player.

Simply use their native embed code. The only value that you need to update is the track ID 260765663 provided for each track. Here is an example.

<iframe width="100%" height="166" scrolling="no" frameborder="no" src=";color=ff5500&amp;auto_play=false&amp;hide_related=false&amp;show_comments=true&amp;show_user=true&amp;show_reposts=false"></iframe>

Of course, the player is always responsive!