Many people frequently post music covers and remixes online, whether for non-profit or commercial purposes, and most of them don't gain enough attention to be pulled down or receive a cease and desist notice. However, some do, and the creators of the cover or remix are either ignorant to the fair use copyright permissions and don't have a valid response to the problems they encounter, or are insane enough to keep uploading it over and over until they are banned. Other examples of copyright violations include printing out works by an online artist and displaying them in a public place without permission, movie screenings for medium to large groups without terms of agreement and payment to the company that holds the copyright, and a large quantity of fan works if sold or publicly displayed. Most Artist Alleys at comic conventions have works of popular characters being sold as fan works, and most fanfic boards have the majority of posts being blatant violations without any attempt to justify it under fair use. It varies from country to country, but what are the rights under fair use in US Copyright Law?
US Copyright Law was originally created in 1790 to help an individual or group from imitation and loss of profit, lasting for only 28 years unless renewed and even if an creator renewed their copyright a day before their death it'd still only be 28 years. Now, if a work was created in or after 1978, a copyright extends 70 years after the death of the creator, or 120 years after creation or 95 years after publication if it was a work for hire, such as scripting for a comic book, television series, movie or creating music for a record label contract, in which case the work for hire is copyrighted to whomever hired it, unless the contract explicitly states otherwise in which case it is the shorter original creator's extension. With all the changes to copyright law over almost two centuries, it becomes a tricky dance through legal traps and loopholes to be able to use any copyrighted work without direct permission from the creators or copyright holders. There are, however, several ways it can be used, so long as fair use is shown. Sections 107 through 118 of US copyright law detail how a copyright holder may authorize other individuals to reproduce or copy parts or the whole of their work, as well as what is allowed as fair use without permission. Four factors are used to determine whether something is considered a fair use of the material:
1. The purpose and character of the use, including whether such use is of commercial nature or is for nonprofit educational purposes.
2. The nature of the copyrighted work.
3. The amount and substantiality of the portion used in relation to the copyrighted work as a whole.
4. The effect of the use upon the potential market for, or value of, the copyrighted work.
Factor one allows a school to make quotes from a book as part of their homework and tests, as well as allow a private individual to make copies of a work for reference material if they don't sell or give it away. Factors two and three are key issues some copyright law violators falter over. Making a parody of a song that is already a parody, for example, doesn't deviate far enough if the original melody and harmony are used as the work is not considered transformative, but a parody of a more serious work might be. Take, for example, Down with the Sickness by Disturbed. The song is gritty, harsh and very dark in tone. In the 2004 Dawn of the Dead remake a cover of it was heard which surprised a lot of fans of the original work. Richard Cheese and Lounge Against the Machine had taken the work and turned it into an old fashioned lounge song, parodying the original harshness with a softer more mellow tone that still kept the same lyrics, but along with most of their cover works, changed the nature of the work into 1) A different genre of music, 2) A parody of the original work, 3) A different tempo, and 4) Different instrumental melody inspired by the original work but not taken note for note. While the band may have paid the usage fees, under copyright law, they wouldn't have to... So long as it was determined that their cover didn't adversely affect the profits of the original work, and satisfied factor three. Seeing as they are little known, I'd say that the forth factor would be satisfied as well. The third is a bit more tricky, as they did take the sum of the lyrics.
Some musicians take samples from other works for their own music for remixes and try to cite a limitation on the amount taken from another work, or authors on the limitation of words taken in quotation from that of another author's work not yet in public domain. Let me make this perfectly clear: There is no explicit minimum or maximum amount permitted under copyright law for sampling. Unless if falls under more than just factor three, the work is a violation of copyright law. I could make an entire song made solely from samples of other works, a mashup compilation or medley, and if I paid the dues for the samples (relatively inexpensive unless you're performing live) I would be permitted to do so, so long as I did so to the appropriate parties prior to sharing the work. However, without paying the dues, I'd have to go the route of Weird Al Yankovic, with his various polka medleys. Weird Al Yankovic, for those that don't know his work (and you really should, it's hilarious stuff), mostly has works parody the tone of the original work, but his polka medleys change not only the tone, tempo and genre of the samples, but create a flowing thread between them that is consistent in the new context and commenting or criticizing the original, transforming the work. However, despite his permission under copyright law, Weird Al Yankovic still seeks the original artist's permission before releasing a parody. This was most famous for his parody of James Blunt's "You're Beautiful" being parodied with Weird Al's "You're Pitiful" which was not released on an physical album but was released online, due to a political decision between his album agreement with Sony and James Blunt's agreement with Universal, despite James Blunt's permission being given. Which brings up another point of contention on fair use. A work for hire is often more contested than a personal work, as the party commissioning the work is generally more protective of it as they had to pay for it, rather than the original creator, who might find the parody funny enough to give permission without limitation, even if they didn't have to. Michael Jackson famously loved his parodies enough to not only permit him to parody "Beat it" with "Eat it" and "Bad" with "Fat", but also allow him to use the original set used for "Badder" in the parody video of "Eat it". However, concerned with the message, he did not grant permission to parody "Black and White" with "Snack all Night". Weird Al politely did not do that parody and after the financial failure of the cult-classic UHF movie, approached Nirvana and got permission to do "Smells like Nirvana". Through the years he and other parody artists have had to have lawyers navigate the law on specifics allowing a parody without a legal battle, and sometimes with one. But what about the rights of works which are not parodies and what is protected?
Copyright pertains to the original works in the context that they are within. It does not, however, protect facts, ideas, concepts, procedures, processes and systems, etc. It protects architectural designs but not typeface, fashion design, domain names or names of any kind (those would be protected under trademark or patent laws as permitted). Copyright on software may be held for it as a literary work or audiovisual display. The first sale doctrine allows the copyright holder to limit the initial sale of a work, but allows libraries, retail chains, bookstores, rental stores, and individuals to resell the work copies they have, but not to market it as their own work. The good faith defense allows libraries and other educational institutions to a liability of a $200 fine per abuse if they mistakenly believed it was under fair use and it was not. But how is something able to gain copyright protection and what does it offer the copyright holder? All work is copyrighted on first presentation to the public that can be verified through external means. This blog post, for example, is copyright protected to me to prevent its reproduction without permission unless in a reference or parody material, and I can file a cease and desist to anyone who is not using it for those purposes. However, having copyright alone does not grant me the right to sue someone violating said protection. If I were to register the work with the US Copyright Office, I would be able to file not only a cease and desist, but also file a lawsuit that their use was not a fair use, as well claim that it has in some way hurt my profits, such as if someone else were to profit from it while I did not. Without registering it, I would not be able to use that claim without a lawyer to directly show that I did file a cease and desist that continued to be violated, in which case I would be due the damages after the cease and desist. With the copyright registered, however, I'd be able to sue for damages incurred before the cease and desist if I felt they were substantial enough to warrant action. Most companies and individuals use this judgement before determining whether to merely send a cease and desist or whether to file a lawsuit as well. Additionally, while Copyright Law may permit a parody of a work under fair use and protect the secondary work as it is, it does not protect the secondary work's imitation if the original primary work was being parodied, such as famously seen with the flagrant violation by FOX with the show Glee using their own version of "Baby Got Back" using the same arrangement method as Jonathan Coulton, since their work had multiple vocal artists and they didn't thus use the exact same arrangement since it was split across multiple parts. While legally this is true, FOX went further to state that he should be grateful for the exposure, despite a lack of acknowledgement anywhere in the show or elsewhere prior to the investigation into whether it was permitted under copyright law or not. This lack of protection and low-blow by Fox spurred Jonathan Coulton to upload his secondary cover in response, "Baby Got Back (In the Style of Glee)", which he was permitted to do, and not only outsold the Glee version due to the fan backlash, but the proceeds were donated to the VH1 Save the Music Foundation, and the It Gets Better Project. The CBS drama The Good Wife, the episode "Goliath and David" broadcast January of this year, depicts the essential struggle and outcome, and also some of the legal shenanigans that go on with copyright law as well as being humorous even without understanding the context.
Jonathan Coulton, by the way, also allows creative commons rights to all his works, which means that anyone can make their own cover of his works legally so long as they acknowledge his original copyright and do not use it for commercial purposes. More and more creative commons--which is a way for creative copyright holders to permit certain rights to individuals without needing an explicit agreement per use--is growing along places such as YouTube, deviantArt and other popular sites and their official search engine is a good place to look for people wanting to add more content to their various accounts and practice their own parody, cover and remix skills to upload online without the legal hassles and delays of communication (as I have found with certain small indie artists) so long as the person stretching their skills and portfolio does not use them for commercial work (and sometimes even if they are depending on the rights given), which may also help gain exposure for an artist of any medium who is seeking to draw in attention to not only their usage of other works, but also attract people who might be curious enough to look at their original works which may be commercially backed by ads or the like.