Alexander is an international expert of the music of Russian composer-pianist Nikolay Medtner  (1880-1951). His doctoral thesis ‘New Light on Nikolay Medtner: Edna Iles Medtner Collection at the British Library‘ is downloaded worldwide on the regular basis.

In 2013 Alexander took part in international conference ‘Medtner Family in the Russia and World Culture’ at the Glinka Museum in Moscow.

In 2014 Alexander organised Medtner Day, one-day festival dedicated to Medtner.

In 2016 and 2017, for the first time in the UK Alexander organised two international Medtner festivals in London. Events took place in the Royal College of Music, British Library, Pushkin House, City, University of London and Merchant Taylor’s Hall. World’s most renowned Medtnerians, professors Dmitry Alexeev, Christoph Flamm, Hamish Milne and Francis Pott, as well as younger musicians and musicologists from around the globe took part. See below for more details.

In 2017 Alexander have recorded Medtner’s Sonate-Ballade, Op. 27 for Claudio Records and in 2018 some of composer’s finest songs with internationally acclaimed Russian soprano Sofia Fomina. The CD was released by Chandos Records in 2021 to a great critical acclaim.

In 2018 Alexander took part in the International Medtner festival in Berlin, organised by Internationale Nikolaj Medtner Gesellschaft.

In 2019 Alexander delivered a keynote lecture-recital ‘Perspectives on re-interpreting Nikolai Medtner’ at the University of Surrey, part of the New Takes on Recoded Music, Performance Studies Network Research Forum, organised by Dr Georgia Volioti.

In 2020 Alexander performed Medtner’ Second Concerto in London’s St John Smith Square. The following year an article about the Second Concerto was published by Olms Verlag as part of the festschrift Nikolai Medtner: Music, Aesthetics, and Contexts, edited by Christoph Flamm and Wendelin Bitzan.

In 2023 Alexander’s second all-Medtner CD was released by SOMM Recordings. Reviews appeared in American Record Guide, BBC Music magazine, Fanfare magazine, Pizzicato.lu, Music Web, Opera Today, The Quarterly Review & Podbean.com.

Alexander was featured in Channel 4’s Great Canal Journeys (Series 13, Episode 3), discussing Medtner with Dame Sheila Hancock and Gyles Brandreth, as well as playing excerpts from Medtner’s Third Concerto.