I’d recommend attending one, for you’ll get a better idea once you’ve experienced it. If you like chanting and silence, be sure to attend.
It is not a Mass, but a prayer service. Consider it a devotional practice.
Just a brief note about the music and how it relates to Mass. Fr Joseph Gelineau, S.J., developed a style of psalmody (called Gelineau psalmody) that is used in many versions of the psalms for Sundays. Fr Gelineau was also involved in the early Taize community’s music.
While at a Taize prayer service, you’ll typically hear music composed by another Jesuit, Fr Jacques Berthier.
Check out this article on Bl JPII and Taize, which contains this great quote from Pope John XXIII …
"Dear Brothers, in the family-like intimacy of this brief meeting, I would like to express to you my affection and my trust with these simple words with which Pope John XXIII who loved you so much greeted Brother Roger one day: “Ah, Taizé, that little springtime!”
Blessed John Paul II and Brother Roger
Recent meeting of Pope Benedict XVI with members of the Taize community …
romereports.com/palio/pope-meets-with-the-prior-of-the-taize-community-english-6262.html
The 2012 worldwide meeting of the Taize community is in Rome.