Part of a trilogy of albums by pianist See Siang Wong covering little-known Beethoven works from various perspectives, this release features Beethoven piano works mostly from the 1780s, the composer's teenage years. Beethoven wasn't a child prodigy like Mozart, and the works heard here aren't often played, the general perception being that he didn't hit his stride until his mid-20s. The most common of them is probably the Piano Concerto in E flat major, WoO 4, of 1784, which survives only in a piano score with orchestral cues; that work is heard here in a completion by fortepianist Ronald Brautigam. It's a relatively competent student essay in the Classical concerto style, but here, Wong makes a strong case for Beethoven's early solo piano music, which turns out to be more distinctive. The highlights are the three so-called Kurfürstensonaten of WoO 47, begun when Beethoven was 12; they are just about pure Beethoven, serious and formally free. Consider the first movement of the F minor sonata, with its interpolation of the slow introduction back into the recapitulation. There are two variation sets, one of them Beethoven's first published composition, which clearly suggest the importance this form would take on in his later music. The Piano Sonata in C major, WoO 51, is another oddity, a piece for an instrument called an orphica, a rare shoulder-mounted keyboard, apparently written by Beethoven for a girlfriend. (Some of these instruments still exist, and an authentic performance would be fun.) Wong's playing is straightforward; he doesn't let too much personality intrude on the music, and the same is true, perhaps more surprisingly, of Roger Norrington's leadership of the London Philharmonic in the concerto and in the small Rondo for piano and orchestra, WoO 6, originally intended as the finale for the Piano Concerto No. 2 in B flat major, Op. 19, before it was replaced by the snappy syncopated number that has come down through history. Most Beethoven shelves or hard drives will be missing most of these pieces and really should have them.