======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '137'
                                          'artist'  'Warmer Milks'
                                     'text_people'  ''
                                         'release'  'In This Room'
                                           'title'  "See You at Jack's Gate"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['noise', 'psychedelic rock', 'experimental', 'psychedelic', 'sxsw 2009']"
                                     'discogstags'  "['folk, world, & country', 'acoustic', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-cppex-experimental or noise'
                                             'bpm'  '124.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008DA 00000000005C2C16 00000000 00538398 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'In This Room'
'TBPM' (BPM (beats per minute))                     '124.2'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-experimental or noise'
'TDRC' (Recording time)                             '2008'
'TENC' (Encoded by)                                 'iTunes v7.0.2'
'TIT2' (Title/songname/content description)         "See You at Jack's Gate"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Warmer Milks'
'TPE2' (Band/orchestra/accompaniment)               'Warmer Milks'
'TPUB' (Publisher)                                  'Fuck It Tapes'
'TRCK' (Track number/Position in set)               '08'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'acoustic', 'folk']
'TXXX:lastfmtags'                                   ['noise', 'psychedelic rock', 'experimental', 'psychedelic', 'sxsw 2009']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+1.48 dB'
'TXXX:replaygain_track_peak'                        '0.446888'

========================== row from database ==========================
                                              'id'  1521251
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Warmer Milks - In This Room [2008, Fuck It Tapes]/Warmer Milks - 08 - See You at Jack_s Gate.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  137
                                           'genre'  rock-cppex-experimental or noise
                                        'filesize'  5483733
                                           'mtime'  1620735997
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy [2008, Fuck It Tapes] 08 Jack_s rock cppex experimental or noise
                                      'tag_artist'  Warmer Milks
                                     'tag_release'  In This Room
                                       'tag_title'  See You at Jack's Gate
                                             'bpm'  124.2
                                    'search_title'  'at':3 'gate':7 'jack':4 'jacks':6 's':5 'see':1 'you':2
                                   'search_artist'  'milks':2 'warmer':1
                                  'search_release'  'in':1 'room':3 'this':2
                                     'search_rest'  '2008':2,3 'classicprogpsy':1 'cppex':11 'experimental':12 'fuck':4 'it':5 'jack':8 'noise':14 'or':13 'rock':10 's':9 'tapes':6,7
                                    'search_combo'  '2008':14,15 'at':3A 'classicprogpsy':13 'cppex':23 'experimental':24 'fuck':16 'gate':7A 'in':10C 'it':17 'jack':4A,20 'jacks':6A 'milks':9B 'noise':26 'or':25 'rock':22 'room':12C 's':5A,21 'see':1A 'tapes':18,19 'this':11C 'warmer':8B 'you':2A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['noise', 'psychedelic rock', 'experimental', 'psychedelic', 'sxsw 2009']
                                        'tag_date'  2008
                                     'discogstags'  ['folk, world, & country', 'acoustic', 'folk']

============================== file details ==============================
                                           'mtime'  1620735996.8830302  (2021-05-11 14:26:36)
                             'size'  5483733