Representation: **ordo¶

**ordo – sequential order of events representation

The **ordo representation consists of a set of numerical values indicating the order of events. An **ordo spine simply encodes a series of ascending integers marking the succession of events:

**ordo

1

2

3

4

5

*-

The **ordo representation recognizes “common system” barlines – see **barlines**.

It is recommended that files containing predominantly **ordo data should be given names with the distinguishing `.ord’ extension.

The following table summarizes the **ordo mappings of signifiers and signifieds.

0-9	decimal values
.	null token
=	barlines
==	double barline

Summary of ***ordo** Signifiers*

A sample document is given below:

**ordo
=1
1
2
3
=2
4
.
5
*-

The following Humdrum command produces **ordo data as output:

**num**

number selected Humdrum data records

The following tandem interpretations can be used in conjunction with **ordo:

meter signatures	*M6/8
key signatures	*k[f#c#]
key	*c#:
tempo	*MM96.3
timebase	*tb32

Tandem interpretations for ***ordo***

`` barlines, **date, **dur, **metpos, **recip, scramble, **takt, **time, **Zeit``