E.S. Posthumus

is an acronym for "Experimental Sounds" while Posthumus (Latin postumus, meaning "last" or "born after father's death"; the English spelling is influenced by humus, "ground", "soil") is a word that is meant to represent "all things past", suggesting the music was inspired by things that have ended, some time after they ended.

[2] After reporting his brother's death, Helmut stated that while there still may be one or two unreleased songs (one of them being their single "Christmas Eve" released in November 2010), the group would no longer be active.

It was originally made available for purchase online through CD Baby in January 2001; It became the third-biggest selling album in CDBaby's history.

The success of the album prompted the wide re-release to retail in May 2005 through Wigshop and 33rd Street Records/Bayside Distribution.

Other musicians performing on this CD include Pedro Eustache, Michael Landau, Matt Laug, Lance Morrison, Davy Spillane and Efrain Toro.

[8] Rise to Glory is a single released in September 2005 featuring the vocals of rappers DJ Quik and Bizarre (from D12).

According to Helmut, the project would be a re-arrangement of their favorite holiday songs and "bring something new to the party".

In a Facebook posting on the group's fanpage, mid-November 2010, Helmut relayed that "When Franz passed away last May, the project was barely off the ground; however, a lyric, piano sketch and rough vocal were completed on the new song.