Training for a marathon means I spend a lot of time running in parks and trails where there is no internet access at all. I need a way to find and save high-energy music that I can play directly from my watch or my phone while I am out on a long run. I am looking for a site that is fast and allows me to search for specific genres like house or techno that keep my pace up. Most of the sites I have tried are way too slow and make the process of getting music feel like a chore. Does anyone have a tip for a site that is built for speed and works well on a mobile browser?