Free Them Changes ringtone for your phone. Listen first, then download the version you like. Artist: Thundercat. You can choose from 7 versions between 15 and 42 seconds. If you like bass guitar, guitar and funk ringtones, see the tags below. Two formats are available: .MP3 for Android and other phones and .M4R for iPhone. More ringtones by Thundercat are on the artist page, the link is under the title.