The top 10 composers of all time?

New York Times critic Anthony Tommasini has recently asked for contributions to the list of 10 greatest composers. I don't purport to offer musicological opinion on this. But what I can do is to offer some statistics on who gets played most these days. We've been keeping a database of performances across the world since 2008, and although (of course) it's only a proportion of what's played, it includes a great number of the most important concerts. Based on this, here's what the table looks like - the number on the right is the number of concerts involving their work per year.

Some notes for the data-obsessed: I've excluded opera, which would add Verdi, Puccini and Wagner into the top 10, and move Tchaikovsky up). I've also made some adjustments for the bump in programming that happens when a composer has an anniversary, which resulted in the inclusion of Dvořák and Ravel and the exclusion of Mahler and Schumann. Data is taken from 2008 to 20011, but please note that 2011 is only a partial year, since not all the concerts have been listed yet. 10th January 2011