Understanding mechanical license:
A mechanical license grants the rights to reproduce and distribute copyrighted musical compositions (songs) on CDs, records, tapes, ringtones, permanent digital downloads, interactive streams and other digital configurations supporting various business models, including locker-based music services and bundled music offerings. If you want to record and distribute a song that you don’t own or control, or if your business requires the distribution of music that was written by others, you need to obtain a mechanical license. A mechanical license doesn’t include the use of a song in a video. That use requires a synchronization license which you will need to obtain by contacting the publisher(s) directly.
It is important to note that underlying what most people think of as a “song” is actually two components: the composition (music notes and lyrics that make up a song, created by the composers) and the original recorded audio (recording of musicians playing the song, created by the artists). Often the composers and artists are the same people, but not always. These song components can be owned separately by different entities. For this reason, there are two types of licenses to protect the two types of creations: 1) a mechanical license (audio-only) or synchronization license (video) for the composer to protect the composition, and 2) a master license for the recording artist to protect the original recording. It’s important to understand both components, and both types of licenses when obtaining permission for a “song”:
The term “mechanical royalties” was applied to the reproduction of songs in music boxes, player pianos rolls, and later, phonograph records. This term is still used, and “mechanical royalties” now refers to royalties paid for the reproduction of songs on CD, DAT, audiocassette, flexi-discs, digital downloads, musical greeting cards, etc.