======================== unified (from filesystem) ========================
                                         'bitrate'  '257.76'
                                        'duration'  '326'
                                          'artist'  'Kuba'
                                     'text_people'  ''
                                         'release'  'Random Precision'
                                           'title'  'Build a Fire'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'Q-PLAY-3', 'q-bass-1', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['psychill', 'downtempo', 'dub', 'chillout', 'ambient']"
                                     'discogstags'  "['electronic', 'dub', 'downtempo', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '13'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'electronic-psychill'
                                             'bpm'  '126.5'
                                             'key'  '2A'
                                        'acoustid'  '1832dafd-7e29-4792-b42c-8b888edce104'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Random Precision'
'TBPM' (BPM (beats per minute))                     '126.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-psychill'
'TDOR' (Original release time)                      '2012'
'TDRC' (Recording time)                             '2012-04-20'
'TIT2' (Title/songname/content description)         'Build a Fire'
'TKEY' (Initial key)                                '2A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Kuba'
'TPE2' (Band/orchestra/accompaniment)               'Kuba'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Chillcode Music'
'TRCK' (Track number/Position in set)               '13/13'
'TSO2'                                              'Kuba'
'TSOP' (Performer sort order)                       'Kuba'
'TXXX:Acoustid Id'                                  '1832dafd-7e29-4792-b42c-8b888edce104'
'TXXX:MusicBrainz Album Artist Id'                  '371795db-f780-4380-affd-92e0a0bf7ef5'
'TXXX:MusicBrainz Album Id'                         'db197bad-6c03-4ca0-a03c-9986ea8f724f'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '371795db-f780-4380-affd-92e0a0bf7ef5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'dub', 'downtempo', 'ambient']
'TXXX:lastfmtags'                                   ['psychill', 'downtempo', 'dub', 'chillout', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.80 dB'
'TXXX:replaygain_track_peak'                        '0.540296'

========================== row from database ==========================
                                              'id'  1367987
                                            'path'  /data/Music/Bulk/00poprockelectronic/00ambient/Kuba_-_Random_Precision-2012-gEm/13-kuba_-_build_a_fire-gem.mp3
                                         'working'  None
                                         'bitrate'  257
                                    'duration_sec'  326
                                           'genre'  electronic-psychill
                                        'filesize'  10516587
                                           'mtime'  1636912252
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00ambient Kuba_ _Random_Precision 2012 gEm 13 kuba_ _build_a_fire gem electronic psychill
                                      'tag_artist'  Kuba
                                     'tag_release'  Random Precision
                                       'tag_title'  Build a Fire
                                             'bpm'  126.5
                                    'search_title'  'a':2 'build':1 'fire':3
                                   'search_artist'  'kuba':1
                                  'search_release'  'precision':2 'random':1
                                     'search_rest'  '00ambient':2 '00poprockelectronic':1 '2012':6 'a':9 'build':8 'electronic':11 'em':14 'fire':10 'g':13 'gem':7 'kuba':3 'precision':5 'psychill':12 'random':4
                                    'search_combo'  '00ambient':8 '00poprockelectronic':7 '2012':12 'a':2A,15 'build':1A,14 'electronic':17 'em':20 'fire':3A,16 'g':19 'gem':13 'kuba':4B,9 'precision':6C,11 'psychill':18 'random':5C,10
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-3', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'Q-PLAY-3', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['psychill', 'downtempo', 'dub', 'chillout', 'ambient']
                                        'tag_date'  2012
                                     'discogstags'  ['electronic', 'dub', 'downtempo', 'ambient']

============================== file details ==============================
                                           'mtime'  1636912251.5683727  (2021-11-14 18:50:51)
                             'size'  10516587