App Start-up Needs Initial Design & Crowdfunding Animations done

Morning, We are a Music / App start up that needs initial designs done / animations done on devices to showcase our app for crowdfunding. Idealistically think spotify- But our own App- (not same colourscheme) Although with our app they can snippet parts of each song and save to their playlist. e.g User can cut a song and add only their favourite minute to the playlist.