Mixed In Key (Mixedinkey.com), proudly announces the release of Mashup 1.5 (Mac and Windows), a free update to its innovative and powerful mashup-creation software application. The enhanced features of the new version make it easier than ever to construct beat-matched and harmonically compatible mashups from two or more song files. Mashup 1.5 works in conjunction with the company’s harmonic-mixing application, Mixed In Key 5, to create a complete mashup-creation toolkit for DJs, producers, remixers, and podcasters.