Reaching for philosophical terms seems appropriate enough for two deep thinkers among Russian pianists (strictly speaking, Kolesnikov is Siberian-born, London-based). In what Kant defined as the phenomenal world, the tangible circumstances, there were equal if not always predictable measures of innocence and experience in these Wigmore recitals two days apart.

It took Richard Alston 10 years to start making dances to music. Until the late Seventies he preferred silence, or a Rolodex of scores that he swapped and switched. In this you might say he was a typical product of the time. The fact is more remarkable in relation to his later and more lasting status, for few would deny that Alston has for many years been the most musically astute choreographer working in Britain.

When a great musician pulls out of a concerto appearance, you're usually lucky if a relative unknown creates a replacement sensation. In this case not one but two star pianists withdrew – Maria João Pires, scheduling early retirement, succeeded by an unwell Piotr Anderzewski – and instead we had that most musicianly and collaborative of violinists Isabelle Faust in Schumann, not the scheduled Mozart.

Violins, violas, wind and brass all standing for Schumann: gimmick or gain? As John Eliot Gardiner told the audience with his usual eloquence while chairs were being brought on for the Berlioz in the first half of last night's concert, Mendelssohn set the trend as conductor with Leipzig's Gewandhausorchester - though as I understand it, only the violins stood - and some chamber orchestras of comparable size have adopted the practice.

Morton Feldman: Piano, Violin, Viola, CelloMark Knoop (piano), Aisha Orazbayeva (violin), Bridget Carey (Viola), Anton Lukoszevieze (cello) (Another Timbre)

Power and intelligence combined make Sarajevo-born British pianist Ivana Gavrić stand out from the crowd. Bass lines are clear and strong; right-hand melodies move in keenly articulated song. The first half of her recital progressed with well-earthed, dancing energy to a strong clincher in Chopin's B flat minor Scherzo.

An icy, wet wind snuck under the door of house number 8 in Fournier Street, where Uri Caine, bundled in coat and woolly hat, conjured Schumann’s darkly powerful "Im Rhein". Beside him, perched on a weaver’s stool, was improvising legend Phil Minton, rasping, whistling and groaning his way through "The wilderness of my life".

Florian Boesch is a big man. He’s tall, stocky, and with his bald head and stubble could seem more like a gangster than a Lieder singer. His voice is beautiful, but it matches his appearance – big, weighty and imposing. He has subtlety too, though it is sometimes hard-won, and his affinity with the core Romantic repertoire is always apparent, so this programme, of Schubert, Wolf and Schumann was well chosen to showcase his strengths.

You won't have seen much of magisterial Russian pianist Dmitri Alexeev recently, unless you happen to be a student at the Royal College of Music, where he is Professor of Advanced Piano Studies (they were out in force last night, cheering enough to elicit five encores). His guest appearances at various commemorative concerts, chiefly his towering interpretation of Prokofiev's Sixth Sonata, remain carved in the mind, but this is the first time I've heard him give a full recital.

What has 12 hands, 18 legs, 176 keys and two page-turners? Party night at the London Piano Festival, of course. The six-pianist, two-piano marathon on Saturday evening was a high point of this delectable four-day event – though far from the only one.