Spectra is a fully responsive, single page theme which was created mainly for DJs and music producers. It was made using AJAX technique - now you can be sure that music won't stop playing during page browsing. Spectra also has a built-in, premium music player which can easily cope with SoundCloud tracks or playlists. And last but not least it is amazingly flexible - you can freely rearrange the main page to make subpages appear just where you wish them to (see the demo).