How do you write HTML to make an MP3 available for download?

Unlike some US-based music stores such as Apple's iTunes Music Store, AllOfMP3 charges for the volume of data downloaded, not for individual songs. As of August 13, 2006, the basic price for downloaded music is $0.03 per megabyte, increased from the previous $0.02 per megabyte set on January 15, 2005. As a basis of comparison, a typical four-minute, 128 kbit/s song downloaded from the iTunes Music Store would cost $0.99, whereas this same song at the same bitrate would cost $0.12 to download at AllofMP3.com. (This price is often reduced by a complicated system of discounts based on cumulative usage, promotions, and type of payment. These discounts can reduce the effective price of downloads by up to one third of the original cost.) AllofMP3.com has built a solid reputation for high-quality files and responsive customer service. The AllofMP3 website offers Russian and English user interfaces. All functions, except for the buying of songs and full length song previews, are available to unregistered users (and full length preview of songs is restricted to individuals who have spent a total of $50 or more on the website). Registration is free. The store maintains an account balance for each user (and starts off each user with a balance of $0.20, which will let you buy up to 7 MB of songs). While a user's account has a positive balance, he or she can continue downloading music. To do so, the user selects the files for download from the store's catalog.