EXA_PICO is a game series with a strong emphasis on music. The most notable part of its soundtrack, the Hymns, are sung in a constructed language named Hymmnos, made specifically for this series.
- Virtually any song on the Hymnnos Concert Discs (which have all the Hymns and a few unused songs) qualifies as awesome music. From the first game:
- EXEC_CHRONICLE_KEY/.
- EXEC_PAJA/.#Misya.
- Aurica's version of the above qualifies as well.
- The first game's ending song, EXEC_PHANTASMAGORIA/.
- The first battle theme music Fenrir pretty much kicks ass.
- The second game has METHOD_REPLEKIA/. which accompanies a song-amplifying amplifier Kill Sat that overrides any battle BGM with its overwhelming presence whenever it is sung.
- The second game's ending, EXEC with METHOD_METAFALICA/.
- The EXEC_FLIP hymns (EXEC_FLIP_FUSIONSPHERE/. and EXEC_FLIP_ARPHAGE/.) from both the heroines in the third game, even though their in-game effects equate to a Heroic Sacrifice.
- Ec Tisia, which is played during the True ending credits, combines the three games' openings in an awesome arrangement two thirds of the way into the song.
- The fanmade album Hymmnos Chronicle has its share of awesome music as well, many of which could qualify as Super Prototype, chronology wise.
- Special mention goes to EXEC with METHOD_METAFALICA/. in A.D. 3310, which coincides with the creation of the Metafalica Alpha 400 years ago.
- Illusha's EXEC_PAJA_FYUSION/. is the historical song that establishes her as the Maiden of the Battlefield in the history of Metafalss.