While creating a record for performed work, we should consider the following:

When selecting works for which records are designed for performed works, we consider the Typology of documents/works for maintaining bibliographies in COBISS system.

The following describes fields of the COMARC/B format in records for performed works. Tips for creating data in the bibliographic record for performed work come out of the applicable cataloguing rules for the book material, from the international standard archival description and from the long cataloguing practice which is formed in the COBISS system during maintaining researcher’s bibliographies.

Records for performed works are created in the input mask N (non-book materials).

Bibliographic records for the events are created on the secondary resources which predict, summarize or comment the performed work that is the subject of a bibliographic record. Secondary resources include: programs of events, invitations, radio, television, newspaper or web program announcements, reviews and comments in printed or electronic media etc.

In subfield 001b – Type of record the code "u" – events is entered and the code "d" – performed work is entered in subfield 001c – Bibliographic level. In subfield 001t – Typology of documents/works* only typology which starts with the number 3 can be entered.

It is required to enter the data about the year of the event in the subfield 100c – Publication date 1 of the record for a performed work (event), because it is needed in the classification of bibliographic items in the personal bibliography.

Subfield 101a – Language of text is added only in a record for the work (event) which was undoubtedly performed in spoken or sung form, in case that a language (also more languages) is known.

Data entry in subfield 102a – Country does not fall within the scope of the recommended fields in the record for a performed work, but for the purpose of events statistics according countries it can be used for entering the code for the location of the event.

Other coded data are not entered.

Records for performed works contain the title provided by cataloguer on the basis of documents related to the event. The purpose of the title is to identify the work and to indicate the context of the event in which the work is performed. The titles are therefore concise and optionally contain:

In principle, the title should be in the language of cataloguing. If the title contains parts of the text, taken from the secondary resource, they can stay in the language of the secondary resource.

In subfield 200a – Title proper the title of the performed work or event is entered, i. e. text that describes its contents best.

If the data in subfield 200a are not sufficient for understanding the context of the performed work, we can enter the data about the type of the event, and also the data on the location and time of the event in subfield 200e – Other title information. The numbers, added by the cataloguer, are Arabic numerals.

For performed works the statement of responsibility is entered within the title and responsibility area, even if they are obtained from secondary resources. The data on persons and institutions, which are primarily related to the performed work, is entered in subfield 200f – First statement of responsibility, if they are not already listed in the title.

The way of specifying other statements of responsibility depend on the type of the performed work. As a rule, more statements of responsibility are specified in the case of music, visual or theatrical events if we found them in the secondary resources. In defining the sequence of responsibility data, the relevant ISBD rules for music and audiovisual resources can help us.

Despite the fact that data from field 200 are usually formed by the cataloguer, they are not specified in square brackets. In records, without physical media, we do not use fields and subfields intended for the data about publishing, distribution, edition or publication date, and also not fields and subfields intended for the description of the physical characteristics of the work.

In the input mask N, within the 2XX block of data, only subfield 200a – Title proper is mandatory.

Notes contain information about resources which helped us to form the title and other data. They also contain additional information about the context of an event, which are not specified in field 200, due to the principle of conciseness.

A note about secondary resources, which help us to describe the performed work, is entered in field 300. If a manuscript used for the performed work, which is the subject of the record, is available under certain conditions, we can enter a note about that.

The remaining information on the context of the event, beyond the scope of the necessary data for identification of the work is given in repeated field 300 – General note, if necessary. Similarly, in field 323 – Cast note (projected and video material and sound recordings) other featured performers are listed.

Notes about awards, especially in performances and exhibitions are entered in field 334 – Awards note.

If a title contains general terms as: concert, recital, play etc., the details of the content can be entered in field 327 – Contents note.

The content of the performed work is thematically defined by the UDC number entered in subfield 675c – UDC access*.

As a rule, subject headings should not be assigned to performed works. Exceptionally, they can be assigned when there is a record for thematically similar work by the same author or in the case of the artistic performance of the work. According to the established practice of the library, subject headings are entered in field 610 or in fields 600–609.

In records for performed works (events) only authors with primary responsibility are most commonly cited. Exceptions are primarily records for artistic performances (musical or theatrical), where data on more types of responsibilities are listed. In creating the responsibility data, we follow the rules on the use of fields 700–702 in COMARC/B format and select the more exact relator code.

In subfield 70X3 – Authority record number a number of the corresponding authority record for personal name is entered. In the case of researchers the authority record should also contain a researcher’s code, because a researcher’s code is one of the conditions for maintaining a personal researcher’s bibliography. The role played by a certain person in a performed work (event) is entered in in subfield 70X4 – Relator code. If a secondary data resources enable, the exact code for the type of authorship is entered (for example "545" – musician or "005" – actor or "721" – singer instead of code "590" – performer). The code of the institution is entered in subfield 70X8 – Institution/organization code*.

In subfield 71X – Corporate body name the name of the music or artistic band is entered, which are related to the performed work. In subfield 71X4 – Relator code the exact relator code is entered.