science

Music on demand

Music on demand is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Music on demand rather than just read about it. In short: Music-on-demand (MOD) is a music recording industry certified multi-billion dollar music distribution & subscriber-based industry model conceived with the growth of two-way computing and telecommunications in the early 1990s. Primarily, high-quality music is made available to purchase by way of title subscription license, access by search, and play back instantly using software on set-top boxes (6 MHz separated guar…

Key takeaways

Music on demand belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Music on demand to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Music on demand from memory before moving on to harder problems.

Reference excerpt

Music-on-demand (MOD) is a music recording industry certified multi-billion dollar music distribution & subscriber-based industry model conceived with the growth of two-way computing and telecommunications in the early 1990s. Primarily, high-quality music is made available to purchase by way of title subscription license, access by search, and play back instantly using software on set-top boxes (6 MHz separated guard band channels), coaxial, fiber optics, cellular mobile devices, Apple Macintosh, Microsoft Windows, from an available distribution point, such as a computer host or server located at a telephone, cable TV & wireless data center facility.

History In 1992, computer modem speeds were limited to less than 28 thousand bits per second (28 kbit/s), compared with uncompressed, pulse code modulated (PCM), music on compact disc (CD) that required 150 thousand bytes per second. As a result, additional bandwidth is required to accommodate delivering real-time audio at CD quality standards: 16-bit frame, 44.1 kHz sampling rate, stereophonic (two channel audio). This prompted telephony, CATV, cellular and satellite providers (Virginia Tech DoD cooperative) to consider changing standards, in terms of building higher capacity for existing telecommunications infrastructures and considering business use cases to offer supplemental, U.S. based private, affordable monthly on-demand service subscription plans with revenue split for compensation to music artists representation, licensing groups, telecommunications provider and music-on-demand solutions technology provider. Early design, long range planning, and development of music-on-demand technology, in accordance with Performance, Mechanical, & Songwriting Copyright laws of the United States, include Access Music Network (AMN) by inventor & technology owner Dale Schalow. Mr. Schalow, in the early 1990s, was an independent audio engineer and programmer in Los Angeles, California, college educated in music industry with minor in keyboard, in the Shenandoah Valley, who helped record albums and music scores for David Bowie, Tin Machine, Cypress Hill, House of Pain, Beastie Boys, Interscope, Walt Disney, RJR_Nabisco, and Warner Brothers. A multiplexed music-on-demand model was deployed using PCM audio sampling devices, Apple IIci, the KERMIT, X-Modem, PCM CATV coax transmission standards for computer file and sound data transfer protocols, and SCSI storage systems by Schalow to validate processing 16-bit multi-channel audio from point-to-point in a professional recording studio environment, including his own independently operated music composition studio and 38 Fresh Recordings. The model conceived was introduced by Schalow to Apple Computer (after Steve Jobs departed) in 1992 after he submitted an entry into the "I Changed the World" contest, essentially describing how an Apple computer helped shape and change the world forever based upon its usage. Apple acknowledged the "Accessible Music Network" (AMN) by awarding Schalow Honorable Mention and sending him a simple gray T-shirt with the Apple logo on it. The technology, inspired after Schalow became frustrated at waiting for very slow digital mixes using a digital signal processor accelerated device (never ending progress bar), was also proposed to David Bowie in 1993, who a few years later, introduced his own network service, called David Bowie#Websites (Robert Goodale, Ron Roy), to the world. Initial demonstrations in 1993 also included the executive audiences at Virgin Records on Sunset Boulevard in Los Angeles, California, Bertelsmann Music Group located in New York City, New York, James Madison University (JMU) Executive & Telecommunications Administration, the Virginia Center of Innovative Technology (CIT), Mid-Atlantic University Cooperative Satellite groups, and America Online before Ted Leonsis developed and released its music download player software, $500 million outside vendor acquisition, and merger with Time-Warner, Inc. in Loudoun County, Virginia. Stand-alone software created by AMN for consumer-based access, with demonstrated proof of concepts to numerous C-level executives & owners of Cable TV, Telco, and Cellular service providers in the United States, such as Denver TeleCommunications, Cox FiberNet (Blackwater region), Continental, Comcast/Adelphia, Vanguard (AT&T), Bell Atlantic, Telecable Corporation (Norfolk, Virginia). AMN was then developed for the Microsoft Windows computer operating system, as well as set-top box design architecture prototypes conceptualized with 3D prototypes that required a telephone connector located next to a coaxial cable TV connector to converge low speed data uplinking requests to a head-end file server with high speed downloading of audio frame sets by user (subscriber) controlled interactive communications. Cellular sound delivery packets, proposed to Craig McCaw of Cellular One and Vanguard Cellular, were devised by way of transmitted file bytes beginning with wireless connection initialization, file header, cyclic redundancy check (CRC), distributed sound data frames, "napsack" memory storage caching, and end of file transmit signaling before initiating embedded digital-to-analog playback technology.

Today Music-on-demand has steadily overcome controversy of illegal music distribution and the lag of legislation for rapidly changing technology in the music industry. The RIAA, representing U.S. artists, publishers and songwriters, officially reported in 2023, rapid growth in overall revenues of digital music & paid subscription sales that has surpassed 13 billion US dollars annually. Newer on-demand request technologies have also enhanced modalities & performance of music on demand content, such as speech-to-text search, and natural language processing. Every telecommunications device in the world currently includes music on demand commands & features to the consumer audience and marketplace.

Bibliography TIME Magazine, 12 April 1993, Coming to Your TV Screen: The Info Highway "I Changed the World" Apple Computer Contest, Spring, 1992, Cupertino, CA Cable Television Issues, C-SPAN, Washington Metropolitan Cable Club, September 1993, Washington, DC Stern, Christopher (11 July 1994). "Bell Atlantic first with video dialtone". Broadcasting & Cable. 124 (28): 6. doi:10.2307/3116351. JSTOR 3116351. 2022 Year-End Music Industry Revenue Report | RIAA, March 2023

Worked examples

Example 1 — a first encounter with Music on demand

Start with the simplest possible case. Write down what Music on demand claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Music on demand before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Music on demand ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Music on demand

In research: Music on demand appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Music on demand in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Music on demand is common in secondary-school and first-year university syllabi. It links to neighbouring topics Digital audio, Music industry, Music websites, so understanding it makes those chapters shorter.
In everyday life: Look for Music on demand outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Music on demand in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Music on demand means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Music on demand out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Music on demand in simple terms?

Why does Music on demand matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Music on demand?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Music on demand.