To download directly to your iPhone or iPad, simply click on the link(s) in your order, (or if doing it later, make sure you are signed into your account on the website, https://hemi-sync.com then click on your order and click on the track link). A screen will pop up that asks if you want to download the track; tap on Download. You will see a small down arrow on the top right showing you the download progress.
After it has completed downloading, you can either tap on the down arrow again and it will pop up to play. OR, after downloading – and to find them again – go to your iPhone or iPad screen and look for the blue folder app that says Files (it is on the bottom of most iPad screen and is just a blue folder). Tap on that and you will find your track(s) there in Downloads. You can then tap on them to play them. These will not go into your iTunes Music app, but you can play them on your device.