======================== unified (from filesystem) ========================
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                                        'duration'  '204'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '15'
                                            'date'  '2005'
                                        'comments'  ''
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rest: ''

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

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'TBPM' (BPM (beats per minute))                     '112.821'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005-09-28'
'TIT2' (Title/songname/content description)         'What You Meant'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Franz Ferdinand'
'TPE2' (Band/orchestra/accompaniment)               'Franz Ferdinand'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Epic Records International'
'TRCK' (Track number/Position in set)               '9/15'
'TSO2'                                              'Franz Ferdinand'
'TSOP' (Performer sort order)                       'Franz Ferdinand'
'TSRC' (ISRC (international standard recording code))  'GBCEL0500834/USSM10504666'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
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'TXXX:Acoustid Id'                                  'f30fb457-0e08-4986-8cef-656507b344f6'
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'TXXX:MusicBrainz Album Id'                         'fe681415-4532-3748-82d0-b433d9905739'
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'TXXX:MusicBrainz Album Status'                     'official'
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'TXXX:SCRIPT'                                       'Latn'
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'TXXX:WM/MediaPrimaryClassID'                       '{D1607DBC-E323-4BE2-86A1-48A42A28441E}'
'TXXX:WM/Provider'                                  'AMG'
'TXXX:WM/ProviderRating'                            '6'
'TXXX:WM/ProviderStyle'                             'Rock'
'TXXX:WM/UniqueFileIdentifier'                      'AMGa_id=R   794687;AMGp_id=P   607885;AMGt_id=T  8398623'
'TXXX:WM/Year'                                      '2005'
'TXXX:WMFSDKNeeded'                                 '0.0.0.0000'
'TXXX:WMFSDKVersion'                                '11.0.5721.5145'
'TXXX:discogstags'                                  ['rock', 'new wave', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'britpop', 'indie rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
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'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.12 dB'
'TXXX:replaygain_track_peak'                        '0.396657'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'386552a6-609e-4133-a257-13c3a001af6d')

========================== row from database ==========================
                                              'id'  1257090
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Franz Ferdinand/You Could Have It So Much Better/09 What You Meant.wma.mp3
                                         'working'  None
                                         'bitrate'  226
                                    'duration_sec'  204
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  5814144
                                           'mtime'  1621697502
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 09 Meant.wma ifs songwriter indie rock
                                      'tag_artist'  Franz Ferdinand
                                     'tag_release'  You Could Have It So Much Better
                                       'tag_title'  What You Meant
                                             'bpm'  112.821
                                    'search_title'  'meant':3 'what':1 'you':2
                                   'search_artist'  'ferdinand':2 'franz':1
                                  'search_release'  'better':7 'could':2 'have':3 'it':4 'much':6 'so':5 'you':1
                                     'search_rest'  '00singer':1 'eos':3 'ifs':7 'indie':8 'meant':4 'meantwma':6 'rock':9 'songwriter':2 'wma':5
                                    'search_combo'  '00singer':13 'better':12C 'could':7C 'eos':15 'ferdinand':5B 'franz':4B 'have':8C 'ifs':19 'indie':20 'it':9C 'meant':3A,16 'meantwma':18 'much':11C 'rock':21 'so':10C 'songwriter':14 'what':1A 'wma':17 'you':2A,6C
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'britpop', 'indie rock', 'rock']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'new wave', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621697502.4037535  (2021-05-22 17:31:42)
                             'size'  5814144