Download of KaraokeFive 45.18 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This software for Mac OS X was originally designed by Karaoke5. The software lies within Lifestyle Tools, more precisely Entertainment. We recommend checking the downloaded files with any free antivirus.
From the developer:
Karaoke 5 is a text synchronizer to create MIDI, MP3, K5, and MP4 files and an excellent management tool for mixing songs. In addition to the main database, there are two windows on the main window, side by side with the Playlist so you can have maximum control in every situation.
You may want to check out more Mac applications, such as Cuelux, minutor or BORDAS – La Conjugaison, which might be similar to KaraokeFive.