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Can I use a copyrighted verse or melody within my own original composition?
Interpolations
Whenever you use a copyrighted verse within your original composition, or if you have written your own lyrics and want to use an underlying copyrighted melody, you will need special permission from the songwriter administration (publisher) in order to legally disribute. These are called "interpolations", where you use a small portion of someone else's work embedded within the body of your entire composition. Certain songwriter administrations are stricter than others (some have zero-tolerance policies), while others can be more open to these kinds of requests. If approved, this can involve an upfront fee (advance on royalties owed) and a new work publishing split (% of the new work publishing ownership. Most publishers will ask for co-authorship of your song if you decide to register it with your PRO ASCAP, BMI or SESAC, for example).

Custom Licensing
We are happy to help you with any interpolation or derivative request through our Custom Licensing services to put you in the best position to succeed, while offering guidance on how to present this through the proper songwriter administration channels.
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How do I know if I need to get a license for my interactive audio streaming?
Whenever you distribute interactive audio streams, a license is required. However, under the Music Modernization Act, most digital service providers (DSPs) will handle licensing of interactive audio streams for you. However, smaller DSPs with fewer than 5,000 unique sound recordings (USR) might not handle licensing. For distribution to those services, and for distribution on your own website, you should obtain a license. Easy Song Licensing can help you through our Custom Licensing services. 1. You will need an interactive audio streaming license if you want to make your cover song available for streaming on your personal website. 2. You will need an interactive audio streaming license to make your cover song available with any digital service provider offering fewer than 5,000 unique sound recordings (USR) on their service. If you are still unsure whether you need a license, we recommend contacting the DSP directly, or contacting us at 1-800-360-5192.
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Is my interactive audio streaming license bought through Easy Song Licensing prior to 2021 still valid?
Yes, changes of the Music Modernization Act that take effect in 2021 do not affect licenses previously secured under compulsory law prior to that time.
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https://www.easysonglicensing.com/pages/help/resources/faq.aspx