I would say Kluppe. It is a very good looper, especially for working not
with recording loops over and over, but for mixing existing loops. It would
benefit hugely from adding some basic synchronization to it and time
stretching (it already has a beat grid anyway). The author of it seems to be
busy and not really interested in further development.
On Thu, Feb 11, 2010 at 6:11 AM, <humbert.olivier.1(a)free.fr> wrote:
  Hi,
 I made on 
linuxmao.org a glossary for softwares.
 You can find the master's page here :
 
http://www.linuxmao.org/tikiwiki/tiki-index.php?page=Glossaire+des+logiciels
 When I begun this project, it was a single listing-page with all softs that
 have a dedicaced page on 
linuxmao.org, but after watch this first list
 grown and grown and grown, I decided to cut it on :
 1) actual (has an update since january 2009) :
 
http://www.linuxmao.org/tikiwiki/tiki-index.php?page=Liste+des+logiciels+li…
 2) almost-actual (last update between januray 2005 and january 2009) :
http://www.linuxmao.org/tikiwiki/tiki-index.php?page=Liste+des+logiciels+li…
 3) museum-section (last update before 2005) :
 
http://www.linuxmao.org/tikiwiki/tiki-index.php?page=La+section+mus%C3%A9e
 there is too a special page with ladpsa/dssi/lv2 plugins and host/protocol
 : 
http://www.linuxmao.org/tikiwiki/tiki-index.php?page=Liste+des+greffons
 and few others that you can find on these pages.
 All of this is in french (enjoy ! ;) )
 That being said, if at the begining, i was alone on this work, now it's a
 team work and we made "software versions surveillance" each month, so, it's
 up-to-date.
 Bye, and happy to hear something who make me thing that reZound can will be
 reworked/update :D
 Olivier,
 
http://www.linuxmao.org
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