May
| Item title | Countries | Deadline |
|---|---|---|
| 3rd Annual IronWorks Percussion Duo Composition Competition | United States | 15 May 2010 |
| CALL FOR ELECTRO-ACOUSTIC MINIATURES - MUSICA VIVA 2010 - SOUND WALK | Portugal | 31 May 2010 |
| Prix Giuseppe Englert | Switzerland | 30 May 2010 |