Leo Geyer

Composer and Conductor

Artistic Director:  

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Materia Medica (2012)

Materia Medica was first performed by Constella Orchestra conducted by Leo Geyer on the 14th of April 2012 at St. Margret’s Church (SE London).

for chamber orchestra

Cadeus Symbol



Materia Medica is the Latin term used to describe substances with therapeutic properties.  In Homeopathy Materia Medica is an encyclopaedia of remedies. It specifies in detail the symptoms, conditions and personalities of each remedy, which when matched with the individual, promote healing. This piece uses twelve widely used homeopathic remedies and translates their properties into musical characters, with each character assigned to an instrument of the orchestra. The musical material used to define these remedies fuses with the central motif, just as the remedies themselves are used to combine with the body’s immune system.


Below lists which instruments are paired with which remedy in order of hearing.


Excerpt from premiere performance by Constella conducted by Leo Geyer.

Commissioned for The Constella Orchestra  

Duration: 10'

Caduceus Symbol

Cello - Aconite

Bassoon - Nux Vomica

Violin II - Sulphur

Trumpet - Silica

Flute - Hypericum

Double Bass - Gelsenium


2, 2, 2, 2 / 2, 2, 0, 0 / Timp. / Strings

Noteable Performances

28th November 2014

The English Young Artists' Sinfonia (cond.) Bob Bernhardt - Apothecaries HalL.

Oboe - Belladonna

Viola - Arsenicum

Violin I - Pulsatilla

Clarinet - Phosphorus

Timpani - Hepar Sulph

Horn - Arnica  

Winner of the ESO & PRS Composition Competition


Materia Medica is available to hire. Please contact the composer directly to discuss rental arrangements. The score may be purchased for £15.00 excluding postage.