# Filter command

## Quick Filter

Analogy to Find command (menu Edit/Find) and Quick Select (Select/Quick Select).

## Filter selected tracks

Only tracks marked as selected are left in database.

## Treeview Filter

Database filtering by tree of artists, albums, years, genres and folders.

## Advanced Filter

Tracks are filtered according to 1-4 criterias, which you can freely combine together by AND/OR operators. Created filters can be saved under chosen name and applied later from menu or from the same screen.

Available as button as well.

Notes about criterias:

- "=" in numerical fields means usual "equals", in string fields means characters matching from field beginning - remaining characters must not match, for example
  - "Year = 199" filters 90's (field "Year" is handled as string).
  - "Artist = Jack Brown" finds both "Jack Brown" and "Jack Brown & His Brothers"
- "<>" in numerical fields means usual "less than and bigger than", in text fields means different characters from field beginning - remaining characters must not match, for example
  - "Year <> 199" skips 90's in database.
  - "Artist <> Jack Brown" skips both "Jack Brown" and "Jack Brown & His Brothers"
- "Exact match" means that whole field must match to the string.
- "<",">",">=","<-" in numerical fields mean usual "less than, bigger than...". Those operators can be used in string fields to limit the database, for example
  - "Artist >= M" only leaves all artists from letter M to letter Z.
- "Includes" means, that searched string can be found everywhere in the field (for example in lyrics)
- "Doesn't include" means opposite of previous.

## Set filter off

Deactivates filter. This function can be found on right menu button click on button Filter or from Advanced Filter screen.

## Special...

### Filter duplicates

This special filter helps to locate duplicates. It is based on identical or similar names and track lengths.