Along these lines. It means they've had a brilliant career, been very successful, become well respected in their field.

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Note added at 3 mins (2009-02-06 14:30:55 GMT)
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So " X and X are two composers who have had brilliant professional careers"

other options

a renowned professional trajectory

Mike :)

"Reconocida trayectoria" is a phrase often used in CVs to indicated a well-seasoned person, experienced in his or her chosen career. This refers to a person who has NO popular fame or renown. In the music profession we use the term "well-established" for someone who has a long, fairly successful career in which their fame or renown is only within a limited circle. The following references show the typical usage of "well-established composer".

PDF] American Composers Alliance The American Composers Alliance ...File Format: PDF/Adobe Acrobat - View as HTML
and well-established composers from all over the United States. Festival composers and performers will come together from all points north, south, east, ...
composers.com/files/ACAFestival08PressRel.pdf - Similar pages
Bleak future for young composers - News - The IndependentA cut of up to 80 per cent of Arts Council money for new commissions in the past five years has left even well-established composers struggling to attract ...
www.independent.co.uk/news/bleak-future-for-young-composers... - 77k - Cached - Similar pages
American Double | Distinctive Performances, Distinguished ComposersRepertoire: American Double strives to familiarize audiences and instrumentalists with well-established composers of American and European origin whose ...
www.americandouble.com/ - 12k - Cached - Similar pages
Article - The OrganThere are a small number of well established composers enjoying the freedom to write and publish almost anything they desire, but there are many more ...
www.theorganmag.com/articles/afnom.html - 12k - Cached - Similar pages
CCMWThis combined focus on emerging and well-established composers anchors the new music to the tradition of Canadian music, and creates a valuable encounter ...
www.ccmw.ca/about.html - 11k - Cached - Similar pages
History of the NACUSA East Coast ChapterThis event was followed by a yearly concert series that featured music by emerging and well established composers. In the fall of 1992 – following Josef ...
www.music-usa.org/nacusa-ec/history.html - 7k - Cached - Similar pages
London Contemporary Opera... and writers were already established but wanted to have the opportunity to study with well-established composers, and members of LCO artistic team. ...
www.londoncontemporaryopera.com/frontiers-pt1.html - 15k - Cached - Similar pages
Yes, composers can get a hand - but only if they don't need it ...It provides a nice element of security in a freelance world, but both men are well-established composers, experienced in writing orchestral music. ...
www.guardian.co.uk/books/2001/apr/21/books - 75k - Cached - Similar pages
Publishing the Debate - LinzThe ongoing nature of this discussion is reflected in more recently published comments, by even well established composers such as Keith Humble (1989) "What ...
www.rainerlinz.net/NMA/articles/publishing.html - 14k - Cached - Similar pages
About Screened Music NetworkWell established composers working regularly in television or feature film. Published and with major broadcast credits. ...
www.screenedmusic.co.uk/about.aspx - 37k - Cached - Similar pages