The complete demo recording ($9.99) as well as individual songs ($0.99) are available on iTunes. This may be a great way for you to "stretch your budget" by encouraging parents to download the recording for their kids.
The King and Me iTunes Download
Important: when you purchase and download the recording through iTunes, duplication rights are NOT included. You may not purchase a single download through iTunes, and then make or distribute multiple copies.
Also: Be aware that the recording is not available through Apple Music (the streaming service). You may need to download the iTunes Store app to purchase the tracks on your mobile device.
Click the button below or simply search iTunes by the title of the musical.