Science Museum Space Exploration


Ian Assersohn

A unique choral work for mixed voices and piano

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A small blue rock,
Spinning through infinity.
One of countless millions
Dancing to gravity’s
Stern, steady, unrelenting beat.


Ionian Mass is a joyful celebration of science and the natural world in five movements for mixed-voice SATB choir and piano. It borrows from the traditional form of a mass setting, but using a new, secular text by the composer.

Duration: 20 minutes.

Read more here

Watch the short video below for a behind-the scenes look at the recording of the work,

then visit the Listen/View page to hear the full recording and browse the vocal score.