| Tag | Name | Type | Required | Description |
|---|---|---|---|---|
| 1312 | NumInGroup | Number of repeating NestedInstrAttribType (1210) entries. See also: NoInstrAttrib (870). | ||
| 1210 | Int Enum | Code to represent the type of instrument attribute | ||
| 1211 | String | Attribute value appropriate to the NestedInstrAttribType field |