======================== unified (from filesystem) ========================
                                         'bitrate'  '206.001'
                                        'duration'  '160'
                                          'artist'  'José González'
                                     'text_people'  'The Knife'
                                         'release'  'Veneer'
                                           'title'  'Heartbeats'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'acoustic', 'swedish', 'folk', 'singer songwriter']"
                                     'discogstags'  "['folk, world, & country', 'acoustic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '87.977'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 00000161 00000195 0000047E 00000487 000071F6 00007224 00005314 00005EA5 '
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'COMM:iTunes_CDDB_IDs:eng'                          '11+33343ACD6F9CF18F7BEE89E954DD1F65+3422314'
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'PRIV:WM/WMCollectionID:\x8bæ\x08í\x9bN\x9bC\x9c÷õ#2E\x07)'  PRIV(owner='WM/WMCollectionID', data=b'\x8b\xe6\x08\xed\x9bN\x9bC\x9c\xf7\xf5#2E\x07)')
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'TALB' (Album/Movie/Show title)                     'Veneer'
'TBPM' (BPM (beats per minute))                     '87.977'
'TCOM' (Composer)                                   'The Knife'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'iTunes v4.7.1'
'TIT2' (Title/songname/content description)         'Heartbeats'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Josi Gonzalez'
'TPE2' (Band/orchestra/accompaniment)               'José González'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Mute'
'TRCK' (Track number/Position in set)               '4'
'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:discogstags'                                  ['folk, world, & country', 'acoustic']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'swedish', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.81 dB'
'TXXX:replaygain_track_peak'                        '0.593371'

========================== row from database ==========================
                                              'id'  1283299
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Jos_Gonzales_-_Heartbeats.mp3
                                         'working'  None
                                         'bitrate'  206
                                    'duration_sec'  160
                                           'genre'  rock-unsorted
                                        'filesize'  4131364
                                           'mtime'  1676052998
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Jos_Gonzales_ _Heartbeats rock unsorted
                                      'tag_artist'  José González
                                     'tag_release'  Veneer
                                       'tag_title'  Heartbeats
                                             'bpm'  87.977
                                    'search_title'  'heartbeats':1
                                   'search_artist'  'gonzalez':3,4 'jose':1,2
                                  'search_release'  'veneer':1
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'gonzales':8 'heartbeats':9 'jos':7 'loose':3,4 'rock':10 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'files':11,12 'gonzales':14 'gonzalez':4B,5B 'heartbeats':1A,15 'jos':13 'jose':2B,3B 'loose':9,10 'rock':16 'unsorted':8 'veneer':6C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'swedish', 'folk', 'singer songwriter']
                                        'tag_date'  2003
                                     'discogstags'  ['folk, world, & country', 'acoustic']

============================== file details ==============================
                                           'mtime'  1676052998.0527432  (2023-02-10 19:16:38)
                             'size'  4131364