When is it illegal to play someone else&#39;s copyrighted song on an instrument?
<p>I am learning guitar and found out that Justin Sandercoe (from famous guitar teaching website justinguitar.com) has been forced to remove some of his lessons because the song he was teaching his audience how to play was copyrighted.</p>

<p>Is this because he makes money off ads?</p>

<p>When exactly is it illegal to perform a song on an instrument I am learning?</p>

<p>If I don't pay a mechanical royalty am I not allowed to perform the song for myself in my own home with no one around as guitar practice? What if it's a small private party and someone busts out the guitar and plays a well known song?</p>

<p>What draws the line for when it is illegal to perform a known copyrighted song?</p>

<p>The crucial limitation is <a href="https://www.law.cornell.edu/uscode/text/17/106" rel="nofollow noreferrer">17 USC 106(4)</a> which gives the creater of the work the exclusive right to authorize</p>

<blockquote>
  <p>in the case of literary, musical, dramatic, and choreographic works,
  pantomimes, and motion pictures and other audiovisual works, to
  perform the copyrighted work publicly</p>
</blockquote>

<p>You can play music copyrighted privately, but not publicly, without a license. Look at the definition of public performance in <a href="https://www.law.cornell.edu/uscode/text/17/101" rel="nofollow noreferrer">17 USC 101</a>:</p>

<blockquote>
  <p>(1) to perform or display it at a place open to the public or at any
  place where a substantial number of persons outside of a normal circle
  of a family and its social acquaintances is gathered; or</p>
  
  <p>(2) to transmit or otherwise communicate a performance or display of
  the work to a place specified by clause (1) or to the public, by means
  of any device or process, whether the members of the public capable of
  receiving the performance or display receive it in the same place or
  in separate places and at the same time or at different times.</p>
</blockquote>

<p>A copyright holder enjoys the exclusive right of public performance, so the answer is that when your performance is for the public, it is prohibited. </p>

<p>Generally speaking, it doesn't matter whether you're being paid for performing or not. As long as the performance is public, it's considered to be cutting into the copyright holder's ability to market his work and therefore a violation. </p>

<p>So that leaves the question of when a performance is public. One of the easiest tests is to ask whether it is going out to "a large number of people who are unrelated and unknown to each other." <a href="https://supreme.justia.com/cases/federal/us/573/13-461/#tab-opinion-1970967" rel="nofollow noreferrer"><em>ABC v. Aereo, Inc.</em>, 134 S. Ct. 2498, 2509, 189 L. Ed. 2d 476 (2014)</a>. So playing a song over the speakers at a mall is public, but playing over the phone to your mother is not. Playing at a charity gala is public, but playing at a dinner party at home is not. </p>

<p>To hit your specific questions, practicing alone and playing for a small private party are not public performances. Performing for a large group of people you don't know -- via YouTube, for instance -- will usually be a public performance. The facts that you're not paid, you're an amateur, the song is well known, and you know the song is copyrighted don't help or hurt in either case. </p>

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