======================== unified (from filesystem) ========================
                                         'bitrate'  '179.949'
                                        'duration'  '226'
                                          'artist'  'Calexico'
                                     'text_people'  'Joey Burns/John Convertino'
                                         'release'  'Black Heart'
                                           'title'  'Attack El Robot! Attack! (... And How He Lost remix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'indie', 'fip', 'polyaztone']"
                                     'discogstags'  "['electronic', 'rock', 'folk rock', 'latin', 'southern rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '6'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted;rock-pop-indie'
                                             'bpm'  '93.977'
                                             'key'  '8A'
                                        'acoustid'  'ad55601b-812a-47ad-84f6-f4dd6db6bffb'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Black Heart'
'TBPM' (BPM (beats per minute))                     '93.977'
'TCOM' (Composer)                                   'Joey Burns/John Convertino'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-indie-unsorted', 'rock-pop-indie']
'TDRC' (Recording time)                             '2004-04'
'TIT2' (Title/songname/content description)         'Attack El Robot! Attack! (... And How He Lost remix)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Calexico'
'TPE2' (Band/orchestra/accompaniment)               'Calexico'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/6'
'TSO2'                                              'Calexico'
'TSOP' (Performer sort order)                       'Calexico'
'TXXX:ASIN'                                         'B0001M4DYG'
'TXXX:Acoustid Id'                                  'ad55601b-812a-47ad-84f6-f4dd6db6bffb'
'TXXX:BARCODE'                                      '724354789106'
'TXXX:CATALOGNUMBER'                                '20237-0'
'TXXX:LABEL'                                        'City Slang'
'TXXX:MEDIA'                                        'CD'
'TXXX:MusicBrainz Album Artist Id'                  '5e372a49-5672-4fb8-ba14-18c90780c4f9'
'TXXX:MusicBrainz Album Id'                         '6cdeb812-4345-4eb5-8035-4a8eacf88725'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        '5e372a49-5672-4fb8-ba14-18c90780c4f9'
'TXXX:MusicBrainz Track Id'                         '6c45736a-f404-4354-a824-592e21a2462e'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'folk rock', 'latin', 'southern rock']
'TXXX:iTunes_CDDB_IDs'                              '6+1F074681FEE5F8FF01419E926481D675+4040954'
'TXXX:lastfmtags'                                   ['instrumental', 'indie', 'fip', 'polyaztone']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.32 dB'
'TXXX:replaygain_track_peak'                        '0.456173'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1298266
                                            'path'  /data/Music/Bulk/00poprockelectronic/Calexico/Black Heart/03 Attack El Robot Attack! (... And How He Lost RMX By Wechel Garland).mp3
                                         'working'  None
                                         'bitrate'  179
                                    'duration_sec'  226
                                           'genre'  ifs-songwriter-indie-unsorted;rock-pop-indie
                                        'filesize'  5103950
                                           'mtime'  1638554338
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 03 RMX By Wechel Garland) ifs songwriter indie unsorted;rock pop indie
                                      'tag_artist'  Calexico
                                     'tag_release'  Black Heart
                                       'tag_title'  Attack El Robot! Attack! (... And How He Lost remix)
                                             'bpm'  93.977
                                    'search_title'  'and':5 'attack':1,4 'el':2 'he':7 'how':6 'lost':8 'remix':9,10 'robot':3
                                   'search_artist'  'calexico':1
                                  'search_release'  'black':1 'heart':2
                                     'search_rest'  '00poprockelectronic':1 'by':3 'garland':5,6 'ifs':7 'indie':9 'pop':14 'rmx':2 'rock':11,13 'songwriter':8 'unsorted':10,12 'wechel':4
                                    'search_combo'  '00poprockelectronic':14 'and':5A 'attack':1A,4A 'black':12C 'by':16 'calexico':11B 'el':2A 'garland':18,19 'he':7A 'heart':13C 'how':6A 'ifs':20 'indie':22 'lost':8A 'pop':27 'remix':9A,10A 'rmx':15 'robot':3A 'rock':24,26 'songwriter':21 'unsorted':23,25 'wechel':17
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'indie', 'fip', 'polyaztone']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic', 'rock', 'folk rock', 'latin', 'southern rock']

============================== file details ==============================
                                           'mtime'  1638554338.4027135  (2021-12-03 18:58:58)
                             'size'  5103950