1. Published

   Cydymaith i Gerddoriaeth Cymru

   ap Sion, P. (ed.) & Thomas, W. (ed.), 1 Oct 2018, Y Lolfa. 464 p.

   Research output: Book/Report › Book › peer-review

2. Published

   Painters of Spain.

   ap Sion, P. E. & Ap-Sion, P. E., 1 Jan 2003

   Research output: Non-textual form › Composition

3. Published

   American Minimalism in Europe during the 1970s

   ap Sion, P. E., 4 Dec 2015, Unknown Publisher.

   Research output: Book/Report › Commissioned report

4. Published

   Birth-Childhood-Death.

   ap Sion, P. E. & Ap-Sion, P. E., 1 Jan 2005

   Research output: Non-textual form › Composition

5. Published

   Christophe Levaux, We Have Always Been Minimalist: The Construction and Triumph of a Musical Style, trans. Rose Vekony

   ap Sion, P., 21 Dec 2021, In: Twentieth-Century Music. 18, 3, p. 481–487 7 p.

   Research output: Contribution to journal › Book/Film/Article review › peer-review

6. Published

   Le Cheval Gris.

   ap Sion, P. E. & Ap-Sion, P. E., 1 Jan 2003

   Research output: Non-textual form › Composition

7. Published

   Towards a Typology of Code mixing in Recent Welsh-language Popular Music.

   ap Sion, P. E. & Ap-Sion, P. E., 29 Oct 2007.

   Research output: Contribution to conference › Paper

8. Published

   Blodwen.

   ap Sion, P. E. & Ap-Sion, P. E., 1 Jan 2003

   Research output: Non-textual form › Composition

9. Published

   Nationhood and the Welsh Composer.

   ap Sion, P. E. & Ap-Sion, P. E., 29 Oct 2005.

   Research output: Contribution to conference › Paper

10. Published

    Towards a Typology of Code Mixing in Recent Welsh-language Popular Music.

    ap Sion, P. E. & Ap-Sion, P. E., 1 Jan 2006.

    Research output: Contribution to conference › Paper