======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '276'
                                          'artist'  'Depeche Mode'
                                     'text_people'  'Martin L. Gore'
                                         'release'  '101 cd1'
                                           'title'  'Somebody'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-vocals-4', 'q-mixbeat-2', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'electronic', 'synthpop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '141.118'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     '101 cd1'
'TBPM' (BPM (beats per minute))                     '141.118'
'TCOM' (Composer)                                   'Martin L. Gore'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Somebody'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Depeche Mode'
'TPE2' (Band/orchestra/accompaniment)               'Depeche Mode'
'TPUB' (Publisher)                                  'Mute'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'electronic', 'synthpop']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.27 dB'
'TXXX:replaygain_track_peak'                        '0.591224'

========================== row from database ==========================
                                              'id'  1300636
                                            'path'  /data/Music/Bulk/00poprockelectronic/Depeche Mode/1989-Depeche_Mode-101/101 cd1/Depeche Mode - 101 cd1 - 08 - Somebody.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  276
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  6631925
                                           'mtime'  1620568988
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1989 Depeche_Mode 08 electronic we new wave or post punk
                                      'tag_artist'  Depeche Mode
                                     'tag_release'  101 cd1
                                       'tag_title'  Somebody
                                             'bpm'  141.118
                                    'search_title'  'somebody':1
                                   'search_artist'  'depeche':1 'mode':2
                                  'search_release'  '101':1 'cd1':2
                                     'search_rest'  '00poprockelectronic':1 '1989':2 'depeche':3 'electronic':5 'mode':4 'new':7 'or':9 'post':10 'punk':11 'wave':8 'we':6
                                    'search_combo'  '00poprockelectronic':6 '101':4C '1989':7 'cd1':5C 'depeche':2B,8 'electronic':10 'mode':3B,9 'new':12 'or':14 'post':15 'punk':16 'somebody':1A 'wave':13 'we':11
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'new wave', 'electronic', 'synthpop']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620568987.6269794  (2021-05-09 16:03:07)
                             'size'  6631925