======================== unified (from filesystem) ========================
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                                        'duration'  '146'
                                          'artist'  'Band of Horses'
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                                         'release'  'Everything All the Time'
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                                      'lastfmtags'  "['indie', 'alternative', 'alt country', 'indie rock', 'rock']"
                                     'discogstags'  "['indie rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '10'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '107'
                                             'key'  '3A'
                                        'acoustid'  'c1d9d7ee-ec03-440c-beb6-f36d9e3bbfbd'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '107'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-03-21'
'TIT2' (Title/songname/content description)         'Our Swords'
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Band of Horses'
'TPE2' (Band/orchestra/accompaniment)               'Band of Horses'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sub Pop Records'
'TRCK' (Track number/Position in set)               '3/10'
'TSO2'                                              'Band of Horses'
'TSOP' (Performer sort order)                       'Band of Horses'
'TSRC' (ISRC (international standard recording code))  'USSUB0669003'
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'TXXX:MusicBrainz Album Release Country'            'AU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '07b6020a-c539-4d68-aeef-f159f3befc76'
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'TXXX:MusicBrainz Release Track Id'                 'b01c161a-9325-47eb-adfd-b525ed118a1e'
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'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'                                  ['indie rock', 'rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'alt country', 'indie rock', 'rock']
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.25 dB'
'TXXX:replaygain_track_peak'                        '0.450635'
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========================== row from database ==========================
                                              'id'  1246681
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Band Of Horses/Everything All The Time/03 Our Swords.mp3
                                         'working'  None
                                         'bitrate'  189
                                    'duration_sec'  146
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  3573701
                                           'mtime'  1638554791
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Of The 03 ifs songwriter indie unsorted
                                      'tag_artist'  Band of Horses
                                     'tag_release'  Everything All the Time
                                       'tag_title'  Our Swords
                                             'bpm'  107.0
                                    'search_title'  'our':1 'swords':2
                                   'search_artist'  'band':1 'horses':3 'of':2
                                  'search_release'  'all':2 'everything':1 'the':3 'time':4
                                     'search_rest'  '00singer':1 'eos':3 'ifs':6 'indie':7 'of':4 'songwriter':2 'the':5 'unsorted':8
                                    'search_combo'  '00singer':10 'all':7C 'band':3B 'eos':12 'everything':6C 'horses':5B 'ifs':15 'indie':16 'of':4B,13 'our':1A 'songwriter':11 'swords':2A 'the':8C,14 'time':9C 'unsorted':17
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'alt country', 'indie rock', 'rock']
                                        'tag_date'  2006
                                     'discogstags'  ['indie rock', 'rock']

============================== file details ==============================
                                           'mtime'  1638554791.102288  (2021-12-03 19:06:31)
                             'size'  3573701