NEU: MusicMARC-Datenbank

[Bernhard Eversberg]

Neue "allegro" Musikdatenbank mit MARC-Daten
--------------------------------------------

In den letzten Monaten wurde nebenbei eine MARC-Datenbank mit Musikdaten
erstellt. Es handelt sich um Originaldaten aus US-Systemen, in der Regel
aus OCLC uebernommen. Die Datensaetze sind weitgehend vollstaendig, eignen
sich also fuer ein Studium von MARC-Daten allgemein. Wir machen sie daher
auch allgemein zugaenglich, zumal das Spektrum mittlerweile grosse Teile
der Musik abdeckt, und zwar Noten, Tontraeger und Buecher gleichermassen.
Interessant sind die Register 2 (Komponist: Einheitstitel) und 7 (alle
Stichwoerter aus allen Kategorien).
Die Einzelheiten entnehmen Sie der anhaengenden Beschreibung, die im 
Hinblick auf eine Vorfuehrung vor Musikbibliothekaren in den USA 
auf Englisch erstellt wurde.
Ein Web-Zugang wird noch erstellt werden, wenn es zeitlich zu schaffen
ist. Vorerst gibt's nur telnet, dann aber wahlweise einen Zugang mit   
presto und einen mit vp.

MfG  B.E.



"allegro" Music Database of USMARC records                     1997.02.24
------------------------------------------

Short guide

This new database consists of some 40.000 USMARC records, obtained by
downloading from various OPACs over the Web. All the most prolific 
composers are heavily represented with books, scores, and sound recordings.

There are these indexes (all of them browseable):

   1:  PER   Persons
   2:  CUT   Composer: Uniform titles
   3:  TWD   Title keywords
   4:  TIT   Titles (240, 245, 700$t)
   5:  SER   Series titles
   6:  KWD   All keywords from all fields (100 - 8XX)
   7:  CLA   Classification (Dewey)
   8:  CNR   LC Call Number
   9:  CTN   Control numbers


There are two ways to access it:

1. Index-based access (best for browsing)
--------------------- 
   telnet 134.169.20.3
   opac
   opac
   mm

   What you see is the index 2 at "mozart, wolfgang amadeus: symphonies"
   You get elsewhere by just entering another name.
   Or you can use  Ctrl+n / Ctrl+p  for Next/Previous page.
   Press ? to get help for all other functions.
   Try  Ctrl+i 6  to get into index 6, for example.

2. Menu-driven access  (ordered result sets possible)
---------------------

   telnet 134.169.20.3
   opac
   opac
   mc

   Here, every menu guides you to what keys will do what.
   The find command can be entered from index and short title menus,
   and it works like this:
   You enter  f [Enter]
   then for example   per mozart? and kwd sympho?
   to get the result set of all titles containing Mozart as person AND
   "sympho..." somewhere in the record. 
   This will be around 390 records. You get the first 10, in no order.
   You press o to get it ordered, then the position number in the short
   title list (a ruler appears to aid you) where you want the sorting
   to be done. Enter 1 for a title sort, 60 for a date sort. Then 'a'
   for ascending or 'b' for descending.
   On all displays, 'n' is for "next", 'v' for previous 10 lines.

   Successive 'x' [Enter] gets you back to the main exit.
   Ctrl+c will immediately abort.

To get out of Braunschweig: enter "exit" at the $ prompt.

Error Messages?
If you get error messages about your terminal, try setting it up first
like this: (before you enter mm or mc again)

TERM=vt100 [Enter]

or 

TERM=ansi [Enter]

either one may or may not work, depending on your telnet emulation. 
Other settings probably won't.

For your information:
This system was not specifically programmed for music cataloging. 
"allegro" is a general-purpose database system capable of handling
USMARC records as well as other structures. A setup was made to accomodate
and index MARC music data. This setup could easily be adapted to other
needs. Nothing is hard-wired in the software, but all setups can be 
changed on-site.

B. Eversberg
Universitaetsbibliothek
Technische Universitaet
38023 Braunschweig

B.Eversberg at tu-bs.de