======================== unified (from filesystem) ========================
                                         'bitrate'  '191.978'
                                        'duration'  '229'
                                          'artist'  'Rob Thomas'
                                     'text_people'  ''
                                         'release'  '100% Hits: The Best of 2005'
                                           'title'  'Lonely No More'
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                                      'lastfmtags'  "['alternative rock', 'alternative', 'singer songwriter', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '44'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '85.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '85.9'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2005-11-14'
'TIT2' (Title/songname/content description)         'Lonely No More'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rob Thomas'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '3/44'
'TSOP' (Performer sort order)                       'Thomas, Rob'
'TXXX:ALBUMARTISTSORT'                              'Various Artists'
'TXXX:ASIN'                                         'B000BVZ50S'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '7259e0bd-f146-49f2-b572-b4ba30ad8d6a'
'TXXX:MusicBrainz Album Release Country'            'AU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'e42680f7-e439-4666-9c2c-536c2b3c6db3'
'TXXX:MusicIP PUID'                                 '6a71ea4a-140e-85aa-8612-926914f53029'
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'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:added_timestamp'                              '128930990202923527'
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'singer songwriter', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.36 dB'
'TXXX:replaygain_track_peak'                        '0.374718'

========================== row from database ==========================
                                              'id'  1462099
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Rob Thomas - 100!25 Hits- The Best of 2005 (disc 1) - 03 - Lonely No More.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  229
                                           'genre'  ifs-songwriter
                                        'filesize'  5505901
                                           'mtime'  1637330773
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 100!25 (disc 1) 03 ifs songwriter
                                      'tag_artist'  Rob Thomas
                                     'tag_release'  100% Hits: The Best of 2005
                                       'tag_title'  Lonely No More
                                             'bpm'  85.9
                                    'search_title'  'lonely':1 'more':3 'no':2
                                   'search_artist'  'rob':1 'thomas':2
                                  'search_release'  '100':1 '2005':7 'best':5 'hits':2,3 'of':6 'the':4
                                     'search_rest'  '00poprockelectronic':1 '1':11,12 '100':7 '25':8 'disc':9,10 'files':5,6 'ifs':13 'loose':3,4 'songwriter':14 'unsorted':2
                                    'search_combo'  '00poprockelectronic':13 '1':23,24 '100':6C,19 '2005':12C '25':20 'best':10C 'disc':21,22 'files':17,18 'hits':7C,8C 'ifs':25 'lonely':1A 'loose':15,16 'more':3A 'no':2A 'of':11C 'rob':4B 'songwriter':26 'the':9C 'thomas':5B 'unsorted':14
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'singer songwriter', 'pop', 'rock']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330773.4406946  (2021-11-19 15:06:13)
                             'size'  5505901