Sparkling Waves is an extremely useful selection of 'ambient textures' created by Corey Wood, which can be used to sonically fill out the overall sound of a worship set, as well as transition between songs in a live performance.
This sample pack includes 15-minute long WAV files, with 2 octaves in each key (24 files total), and are NOT tempo or time signature specific. These have been created to work in both major or minor keys, and require NO ADDITIONAL SOFTWARE - they are royalty-free, and compatible with any DAW or audio playback device that accepts WAV files.
(Sound preview below cross-fades at 15-seconds to higher octave example.)