E&O Insurance
Errors and Omissions insurance (E&O) is a type of professional liability insurance. It is used to protect companies, employees, or individuals against claims made by clients for inadequate work or negligent actions.

In the music industry, an E&O insurance policy is used to protect the policyholder from third party claims.

For example, a common use is to give some recourse to television networks, and distributors, from the consequences of a claim for copyright infringement, trademark infringement or defamation. As a result, they usually require producers to have E&O insurance.

European Article Numbering codes. EAN codes can be used in Europe for bar-codes. In the USA and Europe UPC codes are normally used.

One or more discernible images of an original sound as time passes. This acoustic effect is mimicked in electronics by delay effects units.

Electronic Press Kit
A computer/web version of an artist’s publicity material, their Press Kit. The kit typically includes a biography, photos, artwork, show reel(s), artist news, press clippings etc.

Check out Songstuff’s article section for advice on “How to create a Press Kit or Electronic Press Kit“.

Sometimes called sponsorship. An endorsement is a promotional tool used by equipment manufacturers. They provide their gear at a discounted price, or even for free, to successful and high-profile artists and individual musicians. In return, the manufacturer gains exposure for their products and overall brand, brought about by the use of the product by the artist or musician.

The origin of an Extended Play (EP) record was 3 or 4 tracks on a 45 rpm 7 inch vinyl single. A typical vinyl single had only one track per side, with the main track being termed the “A-side” and the track on the flip-side being termed the “B-side”.

EP was later used for 12 inch vinyl records, cassettes and CDs containing two to six tracks.

EP are marketed as extended play records. Typically a single, or 12” single contains 2 to 4 tracks. An album can be defined in terms of number of tracks or overall playing time. An EP is more than a single, but less than an album…. easy!

The relevance of singles, EPs and LPs is under debate in an age of single song downloads and a drive to be constantly engaging with fans. In some markets that is leading to drip-feeding songs, one song at a time, which in turn is having an effect on the music itself.

Equalizer (Equaliser)
An equalizer allows the boosting or cutting of selected frequency bands within an audio signal. There are many different type of equalizers:

Fixed Frequency







Three Band

Two Band


For a fuller description of EQ see our EQ articles by following the link below.

Equalization / Equalisation and EQ Frequencies