Läther (pronounced like "leather" due to the umlaut) is an album by Frank Zappa. Although its history is complex it was eventually released as a set of three CDs in September 1996 ...
http://en.wikipedia.org/wiki/L%C3%A4ther

Bozzio: L-l-l . . . O'Hearn: Listen now . . . Bozzio: Father I'm glad you're here . . . I want you to hear this . . . I have a confession to make, you know?
http://www.globalia.net/donlope/fz/lyrics/Lather.html

Amazon.com: Läther: Frank Zappa: Music ... With a legacy of over 100 years of quality recordings, the Sony BMG Masterworks Store is the place to find the best in classical ...
http://www.amazon.com/L%C3%A4ther-Frank-Zappa/dp/B0000009TT

Läther. First planned in 1977, but not released until 1996. Some material on Läther overlaps with albums like Zappa in New York, Studio Tan, Sleep Dirt or Orchestral Favorites ...
http://www.lukpac.org/~handmade/patio/vinylvscds/lather.html

Läther Source Codes [By Zoot < zootorific@aol.com >. First posted on alt.fan.frank-zappa on September 26, 1996, and re-posted on May 27, 1998. Corrected by JWB in January 1999.]
http://www.lukpac.org/~handmade/patio/misc/lather.html