A music download is the transferral of music from an Internet-facing computer or website to a user's local computer. This term encompasses both legal downloads and downloads of copyright material without permission or payment.

Popular online music stores that sell digital singles and albums include the iTunes Store, Amazon MP3, fairsharemusic, eMusic, Google Play, Kazaa, Nokia Music Store, Tune App, TuneTribe, and Zune Marketplace. Paid downloads are sometimes encoded with Digital Rights Management that restricts copying the music or playing purchased songs on certain digital audio players. They are almost always compressed using a lossy codec (usually MPEG-1 Layer 3, Windows Media, or AAC), which reduces file size and bandwidth requirements. However, this may cause an apparent loss in quality to a listener when compared to a CD, and cause compatibility issues with certain software and devices. Uncompressed files and losslessly compressed files are available at some sites. These music resources have been created as a response to expanding technology and needs of customers that wanted easy, quick access to music. Their business models respond to the "digital revolution" by making legal services attractive for users.

Selena Marie Gomez (born July 22, 1992) is an American actress and singer best known for portraying Alex Russo in the Emmy Award-winning Disney Channel television series Wizards of Waverly Place. She subsequently ventured into feature films and has starred in the television movies Another Cinderella Story, Wizards of Waverly Place: The Movie, and Princess Protection Program. She made her starring theatrical film debut in Ramona and Beezus.

Her career has expanded into the music industry; Gomez is the lead singer and founder of the pop band Selena Gomez & the Scene, which has released three RIAA Gold certified studio albums, Kiss & Tell, A Year Without Rain, and When the Sun Goes Down, spawned three RIAA Platinum certified singles, "Naturally", "Who Says" and "Love You Like a Love Song" and charted four No. 1 Billboard Hot Dance Club Songs. Gomez has also contributed to the soundtracks of Tinker Bell, Another Cinderella Story, Wizards of Waverly Place, and Shake It Up after signing a record deal with Hollywood Records.

Joseph-Maurice Ravel (March 7, 1875 – December 28, 1937) was a French composer known especially for his melodies, orchestral and instrumental textures and effects. Much of his piano music, chamber music, vocal music and orchestral music has entered the standard concert repertoire.

Ravel's piano compositions, such as Jeux d'eau, Miroirs, Le tombeau de Couperin and Gaspard de la nuit, demand considerable virtuosity from the performer, and his orchestral music, including Daphnis et Chloé and his arrangement of Modest Mussorgsky's Pictures at an Exhibition, uses a variety of sound and instrumentation.

Ravel is perhaps known best for his orchestral work Boléro (1928), which he considered trivial and once described as "a piece for orchestra without music".

According to SACEM, Ravel's estate earns more royalties than that of any other French composer. According to the law of most countries (including all members of the World Trade Organization), Ravel's works have been in the public domain since January 1, 2008, in most countries.

Gustavo Adolfo Dudamel Ramírez (born January 26, 1981) is a Venezuelan conductor and violinist. He is the principal conductor of the Gothenburg Symphony in Gothenburg, Sweden, and music director of the Los Angeles Philharmonic in Los Angeles, California. Dudamel is also the artistic director of the Orquesta Sinfónica Simón Bolívar in Caracas, Venezuela.

Dudamel was born in Barquisimeto, Venezuela, the son of a trombonist and a voice teacher. He studied music from an early age, becoming involved with El Sistema, the famous Venezuelan musical education program, and took up the violin at age ten. He soon began to study composition. He attended the Jacinto Lara Conservatory, where he was taught the violin by José Luis Jiménez. He then went on to work with José Francisco del Castillo at the Latin-American Violin Academy. He began to study conducting in 1995, first with Rodolfo Saglimbeni, then later with José Antonio Abreu. In 1999, he was appointed music director of the Orquesta Sinfónica Simón Bolívar, the national youth orchestra of Venezuela, and toured several countries. He attended Charles Dutoit's master class in Buenos Aires in 2002, and worked as assistant for Simon Rattle in Berlin and Salzburg in 2003.

Hilary Erhard Duff (born September 28, 1987) is an American actress, author, entrepreneur and recording artist. Born and raised in Houston, Texas, Duff appeared in local theatre plays and television commercials before coming to prominence in the title role of the Disney Channel's teen comedy Lizzie McGuire and The CW's teen drama Gossip Girl as movie star Olivia. Established as a teen idol, Duff reprised that role in the The Lizzie McGuire Movie and subsequently ventured into motion pictures, appearing in a string of successful films that include Agent Cody Banks, Cheaper by the Dozen, A Cinderella Story and Cheaper by the Dozen 2. Most recently, she has performed in a legion of television dramas and independent films.

Duff expanded her repertoire to include pop music and has released three RIAA-certified platinum albums including Metamorphosis (2002), her debut studio album which was certified triple platinum, Hilary Duff (2004) and Most Wanted (2005), which were both certified platinum. Her most recent studio album Dignity (2007) was certified gold and spawned her highest charting US single to date "With Love". Followed by Best of Hilary Duff (2008), a compilation of her greatest hits, Duff has since sold thirteen million albums worldwide.