======================== unified (from filesystem) ========================
                                         'bitrate'  '225.07'
                                        'duration'  '95'
                                          'artist'  'Brian Benett'
                                     'text_people'  ''
                                         'release'  'Electronic toys'
                                           'title'  'Ergon'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'Q-OLDST-3', 'q-chart-1', 'q-drums-3', 'q-other-3', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['funk', 'jazz', 'library music', 'jazz-funk', 'electronica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '141.4'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Electronic toys'
'TBPM' (BPM (beats per minute))                     '141.4'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Ergon'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Brian Benett'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['funk', 'jazz', 'library music', 'jazz-funk', 'electronica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.19 dB'
'TXXX:replaygain_track_peak'                        '0.710747'

========================== row from database ==========================
                                              'id'  1532637
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/v.a. -electronic toys [a retrospective of 70_s synthesizer music]  1996/16 - brian benett - ergon.mp3
                                         'working'  None
                                         'bitrate'  225
                                    'duration_sec'  95
                                           'genre'  electronic-experimental
                                        'filesize'  2674560
                                           'mtime'  1636917413
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm v.a. electronic [a retrospective of 70_s synthesizer music] 1996 16 brian benett ergon electronic experimental
                                      'tag_artist'  Brian Benett
                                     'tag_release'  Electronic toys
                                       'tag_title'  Ergon
                                             'bpm'  141.4
                                    'search_title'  'ergon':1
                                   'search_artist'  'benett':2 'brian':1
                                  'search_release'  'electronic':1 'toys':2
                                     'search_rest'  '1996':14 '70':9 'a':2,5,6 'benett':16 'brian':15 'electronic':4 'ergon':17 'experimental':18 'music':12,13 'of':8 'retrospective':7 's':10 'synthesizer':11 'v':1 'va':3
                                    'search_combo'  '1996':19 '70':14 'a':7,10,11 'benett':3B,21 'brian':2B,20 'electronic':4C,9 'ergon':1A,22 'experimental':23 'music':17,18 'of':13 'retrospective':12 's':15 'synthesizer':16 'toys':5C 'v':6 'va':8
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk', 'jazz', 'library music', 'jazz-funk', 'electronica']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636917413.4765332  (2021-11-14 20:16:53)
                             'size'  2674560