======================== unified (from filesystem) ========================
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                                        'duration'  '623'
                                          'artist'  'Øresund Space Collective'
                                     'text_people'  'Øresund Space Collective'
                                         'release'  'Inside Your Head'
                                           'title'  'Substantia Nigra'
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                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '5'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic-space;set-pl-progspace'
                                             'bpm'  '155'
                                             'key'  '11A'
                                        'acoustid'  '34423a51-8864-4eb4-8d3b-cd2245cee08d'
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Inside Your Head'
'TBPM' (BPM (beats per minute))                     '155'
'TCOM' (Composer)                                   'Øresund Space Collective'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic-space', 'set-pl-progspace']
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008-11-18'
'TENC' (Encoded by)                                 'iTunes 8.0.1'
'TIT2' (Title/songname/content description)         'Substantia Nigra'
'TKEY' (Initial key)                                '11A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Øresund Space Collective'
'TPE2' (Band/orchestra/accompaniment)               'Øresund Space Collective'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sulatron Records'
'TRCK' (Track number/Position in set)               '1/5'
'TSO2'                                              'Oresund Space Collective'
'TSOP' (Performer sort order)                       'Oresund Space Collective'
'TXXX:Acoustid Id'                                  '34423a51-8864-4eb4-8d3b-cd2245cee08d'
'TXXX:Artists'                                      'Øresund Space Collective'
'TXXX:BARCODE'                                      '9120031190059'
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'TXXX:Q-LOCALNESS'                                  '1'
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'TXXX:Q-UNU'                                        '1'
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'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['progressive rock',
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 'psychedelic rock',
 'psychedelic',
 'stoner rock']
'TXXX:originalyear'                                 '2008'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
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'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.12 dB'
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========================== row from database ==========================
                                              'id'  1412713
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Øresund Space Collective/Øresund Space Collective - 2008 - Inside Your Head/01 - Substantia Nigra.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  623
                                           'genre'  rock-cppex-psychedelic-space;set-pl-progspace
                                        'filesize'  15044730
                                           'mtime'  1620736261
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 2008 01 rock cppex psychedelic space;set pl progspace
                                      'tag_artist'  Øresund Space Collective
                                     'tag_release'  Inside Your Head
                                       'tag_title'  Substantia Nigra
                                             'bpm'  155.0
                                    'search_title'  'nigra':2 'substantia':1
                                   'search_artist'  'collective':4 'oresund':2 'space':3 'øresund':1
                                  'search_release'  'head':3 'inside':1 'your':2
                                     'search_rest'  '2008':2 'classicprogpsy':1 'cppex':4 'pl':10 'progspace':11 'psychedelic':5 'rock':3 'set':7,9 'space':6,8
                                    'search_combo'  '2008':11 'classicprogpsy':10 'collective':6B 'cppex':13 'head':9C 'inside':7C 'nigra':2A 'oresund':4B 'pl':19 'progspace':20 'psychedelic':14 'rock':12 'set':16,18 'space':5B,15,17 'substantia':1A 'your':8C 'øresund':3B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'space rock', 'psychedelic rock', 'psychedelic', 'stoner rock']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736261.129939  (2021-05-11 14:31:01)
                             'size'  15044730