======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '258'
                                          'artist'  'Air'
                                     'text_people'  ''
                                         'release'  'Pocket Symphony'
                                           'title'  'Mayfair Song'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-4', 'q-drums-2', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'french', 'chillout', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '14'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic;electronic-shoegaze or dreampop'
                                             'bpm'  '110.062'
                                             'key'  '10B'
                                        'acoustid'  'b753fe5b-e9ca-400f-82d3-842ad69175de'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pocket Symphony'
'TBPM' (BPM (beats per minute))                     '110.062'
'TCON' (Content type, a.k.a. Genre)                 ['electronic', 'electronic-shoegaze or dreampop']
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2007-03-06'
'TIT2' (Title/songname/content description)         'Mayfair Song'
'TKEY' (Initial key)                                '10B'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Air'
'TPE2' (Band/orchestra/accompaniment)               'Air'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'EMI Music France'
'TRCK' (Track number/Position in set)               '5/14'
'TSO2'                                              'Air'
'TSOP' (Performer sort order)                       'Air'
'TSRC' (ISRC (international standard recording code))  'FRU052060005'
'TXXX:Acoustid Id'                                  'b753fe5b-e9ca-400f-82d3-842ad69175de'
'TXXX:MusicBrainz Album Artist Id'                  'cb67438a-7f50-4f2b-a6f1-2bb2729fd538'
'TXXX:MusicBrainz Album Id'                         'd1bdee8a-989f-47ec-ba69-47e7dcd87f7d'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'cb67438a-7f50-4f2b-a6f1-2bb2729fd538'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'french', 'chillout', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.40 dB'
'TXXX:replaygain_track_peak'                        '0.428336'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8c5dd5e8-f015-458b-bf15-e68edbd237a6')
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='www.infostore.org/user/paz')

========================== row from database ==========================
                                              'id'  1359752
                                            'path'  /data/Music/Bulk/00poprockelectronic/Air/Air - Pocket Symphony (2007)/05 - Mayfair Song.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  258
                                           'genre'  electronic;electronic-shoegaze or dreampop
                                        'filesize'  10351503
                                           'mtime'  1636913731
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (2007) 05 electronic;electronic shoegaze or dreampop
                                      'tag_artist'  Air
                                     'tag_release'  Pocket Symphony
                                       'tag_title'  Mayfair Song
                                             'bpm'  110.062
                                    'search_title'  'mayfair':1 'song':2
                                   'search_artist'  'air':1
                                  'search_release'  'pocket':1 'symphony':2
                                     'search_rest'  '00poprockelectronic':1 '2007':2,3 'dreampop':10 'electronic':4,5,6,7 'or':9 'shoegaze':8
                                    'search_combo'  '00poprockelectronic':6 '2007':7,8 'air':3B 'dreampop':15 'electronic':9,10,11,12 'mayfair':1A 'or':14 'pocket':4C 'shoegaze':13 'song':2A 'symphony':5C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-2', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'french', 'chillout', 'ambient']
                                        'tag_date'  2007
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913730.7204447  (2021-11-14 19:15:30)
                             'size'  10351503