Level. The level refers only to technical difficulty. The musical difficulty is not rated, but could well be very high even if the technical difficulty is very low.

The assumption here is that you are an advanced amateur or pre-professional pianist. “Accessible” means that you should have no technical difficulties with this work. “Advanced” means that you might find the work technically challenging. “Professional” means you can probably can play this only if you are very, very advanced (or professional).

Short. Designates works estimated at less than 15 minutes playing time. For some concertos we just don’t have the information. Feel free to email us if you can help fill in this list.

Long. Designates works estimated at over 40 minutes playing time. Again, we don’t always know, so please share what you know.

Two pianos. Works requiring two (or more) pianos have been omitted.