======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '1113'
                                          'artist'  'The Wirtschaftswunder'
                                     'text_people'  ''
                                         'release'  'Pop Adenauer'
                                           'title'  'Side A'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['german', 'new wave', 'avant garde', 'electronic', 'ndw']"
                                     'discogstags'  "['electronic', 'disco', 'leftfield', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1984'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '123.0'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pop Adenauer'
'TBPM' (BPM (beats per minute))                     '123.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDOR' (Original release time)                      '1984'
'TDRC' (Recording time)                             '1984'
'TIT2' (Title/songname/content description)         'Side A'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Wirtschaftswunder'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'disco', 'leftfield', 'synth-pop']
'TXXX:lastfmtags'                                   ['german', 'new wave', 'avant garde', 'electronic', 'ndw']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.11 dB'
'TXXX:replaygain_track_peak'                        '0.865017'

========================== row from database ==========================
                                              'id'  1372741
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00newwave-postpunk/The Wirtschaftswunder ‎– Pop Adenauer (1984 Ariola)/Side A.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  1113
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  44531584
                                           'mtime'  1620607608
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00newwave postpunk ‎– (1984 Ariola) electronic we new wave or post punk
                                      'tag_artist'  The Wirtschaftswunder
                                     'tag_release'  Pop Adenauer
                                       'tag_title'  Side A
                                             'bpm'  123.0
                                    'search_title'  'a':2 'side':1
                                   'search_artist'  'the':1 'wirtschaftswunder':2
                                  'search_release'  'adenauer':2 'pop':1
                                     'search_rest'  '00newwave':4 '00poprockelectronic':1 '1984':6,7 'ariola':8,9 'disco':3 'electronic':10 'new':12 'or':14 'post':15 'postpunk':5 'punk':16 'wave':13 'waves':2 'we':11
                                    'search_combo'  '00newwave':10 '00poprockelectronic':7 '1984':12,13 'a':2A 'adenauer':6C 'ariola':14,15 'disco':9 'electronic':16 'new':18 'or':20 'pop':5C 'post':21 'postpunk':11 'punk':22 'side':1A 'the':3B 'wave':19 'waves':8 'we':17 'wirtschaftswunder':4B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['german', 'new wave', 'avant garde', 'electronic', 'ndw']
                                        'tag_date'  1984
                                     'discogstags'  ['electronic', 'disco', 'leftfield', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1620607608.1598294  (2021-05-10 02:46:48)
                             'size'  44531584