Yet their snappy, rapid-fire singing demonstrates that there is at least some musical substance behind it all; but how much?

The challenge is to discover where current fashion ends and musical substance begins.

We know how even the most sensitive local observers transform musical substances according to their own predispositions.

Yet the troubling possibility remains that their presence has as much to do with public relations as with musical substance.

This 12-minute work has some musical substance, however.

Yet amazingly, nothing of musical substance is lost in the solo violin version.

His Études combine musical substance and technical challenge to form a complete artistic form.

There is a great deal of gear shifting here, and it has to be done without distracting the listener from the musical substance.

The musical substance of the piece is not particularly Lisztian.

But the musical substance was radically different, a dense, brawny, implacable march.