======================== unified (from filesystem) ========================
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                                        'duration'  '160'
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                                     'text_people'  'A. Powell/S. King/S. House/M. Moorcock'
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                                      'lastfmtags'  "['progressive rock', 'space rock', 'psychedelic rock', 'psychedelic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '12'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic;set-pl-progspace'
                                             'bpm'  '130.063'
                                             'key'  '1B'
                                        'acoustid'  'f8c817dd-0b2c-4aa2-b57d-3eaf36756770'
rest: ''

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

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'COMM:ID3v1 Comment:XXX'                            ' 0000022D 00000252 00002110'
'COMM:iTunNORM:eng'                                 (' 0000022D 00000252 00002110 00002F66 0001D1B6 0001D1B6 00007875 00007607 '
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'COMM:iTunes_CDDB_IDs:eng'                          '12+59231BACA1A3BA6333C3B5A843F9D9F2+979453'
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'TBPM' (BPM (beats per minute))                     '130.063'
'TCOM' (Composer)                                   'A. Powell/S. King/S. House/M. Moorcock'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic', 'set-pl-progspace']
'TDOR' (Original release time)                      '1975'
'TDRC' (Recording time)                             '1993'
'TENC' (Encoded by)                                 'iTunes v7.4.2.4'
'TIT2' (Title/songname/content description)         'Standing at the Edge'
'TKEY' (Initial key)                                '1B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Hawkwind'
'TPE2' (Band/orchestra/accompaniment)               'Hawkwind'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Griffin Music'
'TRCK' (Track number/Position in set)               '7/12'
'TSO2'                                              'Hawkwind'
'TSOP' (Performer sort order)                       'Hawkwind'
'TSSE' (Software/Hardware and settings used for encoding)  'iTunes v7.4.2.4'
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'TXXX:MusicBrainz Album Status'                     'official'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
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'TXXX:lastfmtags'                                   ['progressive rock', 'space rock', 'psychedelic rock', 'psychedelic', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
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'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.77 dB'
'TXXX:replaygain_track_peak'                        '0.664025'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'648ed7a7-6409-4135-897f-2e34cc6ea625')

========================== row from database ==========================
                                              'id'  1409201
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Warrior On The Edge Of Time/1-07 Standing At The Edge.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  160
                                           'genre'  rock-cppex-psychedelic;set-pl-progspace
                                        'filesize'  6948511
                                           'mtime'  1620737227
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy On The Of 1 07 At The rock cppex psychedelic;set pl progspace
                                      'tag_artist'  Hawkwind
                                     'tag_release'  Warrior on the Edge of Time
                                       'tag_title'  Standing at the Edge
                                             'bpm'  130.063
                                    'search_title'  'at':2 'edge':4 'standing':1 'the':3
                                   'search_artist'  'hawkwind':1
                                  'search_release'  'edge':4 'of':5 'on':2 'the':3 'time':6 'warrior':1
                                     'search_rest'  '1':5 'at':6 'classicprogpsy':1 'cppex':8 'of':4 'on':2 'pl':13 'progspace':14 'psychedelic':9,11 'rock':7 'set':10,12 'the':3
                                    'search_combo'  '1':16 'at':2A,17 'classicprogpsy':12 'cppex':19 'edge':4A,9C 'hawkwind':5B 'of':10C,15 'on':7C,13 'pl':24 'progspace':25 'psychedelic':20,22 'rock':18 'set':21,23 'standing':1A 'the':3A,8C,14 'time':11C 'warrior':6C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'space rock', 'psychedelic rock', 'psychedelic', 'rock']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737227.463726  (2021-05-11 14:47:07)
                             'size'  6948511