======================== unified (from filesystem) ========================
                                         'bitrate'  '237.279'
                                        'duration'  '201'
                                          'artist'  'Ros Sereysothea'
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                                         'release'  'Cambodian Rocks, Volume I'
                                           'title'  'Cry Loving Me'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
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 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
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                                      'lastfmtags'  "['cambodian rocks', 'khmer', 'cambodian', 'psychedelic', 'cambodia']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '17'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-asia-cambodia'
                                             'bpm'  '87.6'
                                             'key'  '6A'
                                        'acoustid'  'd6f94aec-7b79-4b48-a54a-2e633258f2ca'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '87.6'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-cambodia'
'TDOR' (Original release time)                      '2003'
'TDRC' (Recording time)                             '2003-12-01'
'TIT2' (Title/songname/content description)         'Cry Loving Me'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Ros Sereysothea'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Khmer Rocks'
'TRCK' (Track number/Position in set)               '2/17'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Sothea, Ros Serey'
'TXXX:Acoustid Id'                                  'd6f94aec-7b79-4b48-a54a-2e633258f2ca'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '31ee2a75-bb26-4197-b567-d14ff1e28e1f'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '5efc7a06-d7a1-48bc-b982-c2c09e2787d8'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['cambodian rocks', 'khmer', 'cambodian', 'psychedelic', 'cambodia']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.65 dB'
'TXXX:replaygain_track_peak'                        '0.358926'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'4bf0966f-3cb7-454d-8690-4cc93e5a50ad')

========================== row from database ==========================
                                              'id'  1476879
                                            'path'  /data/Music/Bulk/00localcharacter/Cambodia Rocks/va - Cambodian Rocks Vol.1 (2003)/02 Ros Sereysothea - Cry Loving Me.mp3
                                         'working'  None
                                         'bitrate'  237
                                    'duration_sec'  201
                                           'genre'  loc-asia-cambodia
                                        'filesize'  5981519
                                           'mtime'  1621629667
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter va Vol.1 (2003) 02 loc asia cambodia
                                      'tag_artist'  Ros Sereysothea
                                     'tag_release'  Cambodian Rocks, Volume I
                                       'tag_title'  Cry Loving Me
                                             'bpm'  87.6
                                    'search_title'  'cry':1 'loving':2 'me':3
                                   'search_artist'  'ros':1 'sereysothea':2
                                  'search_release'  'cambodian':1 'i':5 'rocks':2,3 'volume':4
                                     'search_rest'  '1':3 '2003':5,6 'asia':8 'cambodia':9 'loc':7 'va':1 'vol':2 'vol1':4
                                    'search_combo'  '1':13 '2003':15,16 'asia':18 'cambodia':19 'cambodian':6C 'cry':1A 'i':10C 'loc':17 'loving':2A 'me':3A 'rocks':7C,8C 'ros':4B 'sereysothea':5B 'va':11 'vol':12 'vol1':14 'volume':9C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['cambodian rocks', 'khmer', 'cambodian', 'psychedelic', 'cambodia']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629666.6064568  (2021-05-21 22:41:06)
                             'size'  5981519