Unisono is a web-based calendar application for groups. It was originally programmed for the choir I sing in, Metsoforte. Currently this can be seen clearly, as it is in Finnish and the choir name is mentioned here and there. It is in my plans to make the application completely customizable.

Unisono is written with PHP in an object-oriented style. Output is valid XHTML styled with css. The user experience is further boosted with some AJAX here and there but everything works fine even without JavaScript enabled.