If you love music a lot then you can try the Psalms and Ragas. The Psalms and Ragas application is available for both Windows and MAC. It is a very simple freeware Audio-application containing all the Raga-based (i.e. Indian musical tones-based) Psalm-tunes and Refrains for the Psalms and Canticles created at St. Benedict Monastery. All you have to do is just select a Refrain, a Canticle or a Psalm-tune and listen to the music. The latest version contains Piano-keyboard and related commands.