======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '114'
                                          'artist'  'The Mountain Goats'
                                     'text_people'  ''
                                         'release'  'Bitter Melon Farm'
                                           'title'  'Rain Song'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
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                                     'discogstags'  "['rock', 'folk, world, & country', 'alternative rock', 'lo-fi', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '27'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie'
                                             'bpm'  '84'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Bitter Melon Farm'
'TBPM' (BPM (beats per minute))                     '84'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie'
'TDOR' (Original release time)                      '2002'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Rain Song'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mountain Goats'
'TPE2' (Band/orchestra/accompaniment)               'The Mountain Goats'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  '3 Beads of Sweat'
'TRCK' (Track number/Position in set)               '15/27'
'TSO2'                                              'Mountain Goats, The'
'TSOP' (Performer sort order)                       'Mountain Goats, The'
'TXXX:ASIN'                                         'B000065DVF'
'TXXX:Artists'                                      'The Mountain Goats'
'TXXX:BARCODE'                                      '791071100224'
'TXXX:CATALOGNUMBER'                                '3BOS 1002.2'
'TXXX:Mp3gain_minmax'                               '060,209'
'TXXX:Mp3gain_undo'                                 '+001,+001,N'
'TXXX:MusicBrainz Album Artist Id'                  '9639cd52-c351-4a17-9797-58880e95a7ef'
'TXXX:MusicBrainz Album Id'                         '19c751e5-5d2f-4afd-aeee-d1ac093c8b77'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '9639cd52-c351-4a17-9797-58880e95a7ef'
'TXXX:MusicBrainz Release Group Id'                 '09b61f6f-e42c-3c60-a5dd-66095caa6269'
'TXXX:MusicBrainz Release Track Id'                 '2c185ca9-7c35-3763-90b2-b9515ad95fe7'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'folk, world, & country', 'alternative rock', 'lo-fi', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
'TXXX:originalyear'                                 '2002'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.59 dB'
'TXXX:replaygain_track_peak'                        '0.723603'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'3ced9882-2e31-4618-bc62-509430e4ca91')

========================== row from database ==========================
                                              'id'  1315326
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Mountain Goats/Bitter Melon Farm/15 rain song.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  114
                                           'genre'  ifs-songwriter-indie
                                        'filesize'  2794701
                                           'mtime'  1636400577
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 15 rain song ifs songwriter indie
                                      'tag_artist'  The Mountain Goats
                                     'tag_release'  Bitter Melon Farm
                                       'tag_title'  Rain Song
                                             'bpm'  84.0
                                    'search_title'  'rain':1 'song':2
                                   'search_artist'  'goats':3 'mountain':2 'the':1
                                  'search_release'  'bitter':1 'farm':3 'melon':2
                                     'search_rest'  '00poprockelectronic':1 'ifs':4 'indie':6 'rain':2 'song':3 'songwriter':5
                                    'search_combo'  '00poprockelectronic':9 'bitter':6C 'farm':8C 'goats':5B 'ifs':12 'indie':14 'melon':7C 'mountain':4B 'rain':1A,10 'song':2A,11 'songwriter':13 'the':3B
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  12B
                                           '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-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
                                        'tag_date'  2002
                                     'discogstags'  ['rock', 'folk, world, & country', 'alternative rock', 'lo-fi', 'indie rock']

============================== file details ==============================
                                           'mtime'  1636400576.5328305  (2021-11-08 20:42:56)
                             'size'  2794701