This virus is probably made in South America.
Three_Tunes allocates approximately two kilobytes of memory and infects practically all executed COM and EXE files.
Three_Tunes activates during June, when it randomly plays one of three simple tunes through the speaker.
Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.
More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.