Here are some popular link shorteners that are used in the music industry by music labels and artists.
Smarturl.com
This was probably the first link shorter offering aimed at the music industry from Gupta Media. SmartURL was designed to help simplify the process of marketing online and enable smarter marketing. Features and functionality include Geo-Aware Links, Live Redirects, Collaborative Management, Real-Time Stats and Simpler performance tracking (IQid). The company is a service of Gupta Media, based in New York.
Flyt.it
Flyt is a link shortener designed with the intention of tracking sales and helping music labels, book publisher, and other providers make money off of links. This works by giving the link creator a cut of the money made when a product is sold through that link. This feature is also globalized, when an end user clicks on a certain link they are taken to a local digital storefront. The service has recently added API support that allows partners like Metablocks to provide tight integration with platforms and product lines. The company is an e-commerce offering from Dash Two, a media buying service with expertise in digital ad service.
Genius Link
Genius Link is a link shortener with customization and analytics as a focus. They support custom domains and vanity URLs. As well it has many options for insight on the analytics involving the use of the link. In addition, Genius Link has an API that allows developers to integrate with it. The company was originally named GeoRiot and later became Geniuslink to better reflect fragmentation across the ways people can buy products.