''18 Steps'' is an EP by

rock Rock most often refers to: * Rock (geology), a naturally occurring solid aggregate of minerals or mineraloids * Rock music, a genre of popular music Rock or Rocks may also refer to: Places United Kingdom * Rock, Caerphilly, a location in Wales ...

artist Trey Anastasio. It was released in 2006 on

Rubber Jungle Records Rubber Jungle Records is an independent record label created by Phish frontman Trey Anastasio. It was started by Anastasio to release his album ''One Man's Trash''. The label released Anastasio's ''The Horseshoe Curve'' on July 24, 2007, and the ...

. It was included as a bonus with pre-orders of ''

Bar 17 ''Bar 17'' is Trey Anastasio's fifth solo studio album. It was the first release from his newly formed record label, Rubber Jungle Records. Work began on ''Bar 17'' shortly after the breakup of Phish, but had to temporarily suspend the project d ...

'' from his official website. The disc contains nine new songs, which are outtakes from ''Bar 17''. Like the tracks on ''Bar 17'', the tunes featured on ''18 Steps'' were recorded over roughly a three-year period, from the spring of 2003 to the summer of 2006. ''18 Steps'' can be found in select independent record stores, online auctions, and is still available for download via LivePhish.

Album cover

David Steinberg (aka "Zzyzx") contributed the mathematical expression for the cover. He briefly explains it on Tom Marshall's podcas
episode 4
and mentions it includes

stirling numbers In mathematics, Stirling numbers arise in a variety of analytic and combinatorial problems. They are named after James Stirling, who introduced them in a purely algebraic setting in his book ''Methodus differentialis'' (1730). They were rediscov ...

phi Phi (; uppercase Φ, lowercase φ or ϕ; grc, ϕεῖ ''pheî'' ; Modern Greek: ''fi'' ) is the 21st letter of the Greek alphabet. In Archaic and Classical Greek (c. 9th century BC to 4th century BC), it represented an aspirated voicele ...

, and the sum of a convergent series to form something like 17 + 2 - ... = 18 steps.

Track listing

References

{{Authority control 2006 EPs Trey Anastasio EPs Rubber Jungle Records EPs Albums produced by Bryce Goggin