A mashup is a term used in various fields, including music, web development, and content creation. Here are some definitions of mashup from different sources:

• Music: A mashup is a creative work, usually a song, created by blending two or more pre-recorded songs, typically by superimposing the vocal track of one song over the instrumental track of another). Mashups can change different parts of the songs, including vocal lines, melodies, rhythms, and time signatures.

• Web development: A mashup is a web page or web application that uses content from more than one source to create a single new service displayed in a single graphical interface). Mashups mostly use public APIs that are generally free to use and create a new service from existing ones.

• Content creation: A mashup is a piece of content created by curating text, figures, images, videos, music, and other forms of content from multiple sources and platforms. Mashups can cover a range of forms or content types depending on the media and the purpose, such as text-based mashups and music mashups.

In general, a mashup involves combining elements from two or more sources to create something new and different. Mashups can be used to provide users with a better and interactive user interface, to integrate business and data services, and to convey brand personality through storytelling).