======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '172'
                                          'artist'  'Diana Ross & the Supremes'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Stop! In the Name of Love'
                                           'quals'  ("['Q-HAP-4', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['soul', 'motown', '60s', 'female vocalists', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '112.9'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '112.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Stop! In the Name of Love'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Diana Ross & the Supremes'
'TXXX:Mp3gain_minmax'                               '000,194'
'TXXX:Mp3gain_undo'                                 '+006,+006,N'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'motown', '60s', 'female vocalists', 'pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.21 dB'
'TXXX:replaygain_track_peak'                        '0.399575'

========================== row from database ==========================
                                              'id'  1526725
                                            'path'  /data/Music/Bulk/00poprockelectronic/Disco 70_s 80_s/Diana Ross & the Supremes - Stop! In the Name of Love.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  172
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  3453329
                                           'mtime'  1620537633
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Disco 70_s 80_s electronic we disco or italo
                                      'tag_artist'  Diana Ross & the Supremes
                                     'tag_release'  None
                                       'tag_title'  Stop! In the Name of Love
                                             'bpm'  112.9
                                    'search_title'  'in':2 'love':6 'name':4 'of':5 'stop':1 'the':3
                                   'search_artist'  'diana':1 'ross':2 'supremes':4 'the':3
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '70':3 '80':5 'disco':2 'electronic':7 'italo':10 'or':9 's':4,6 'we':8
                                    'search_combo'  '00poprockelectronic':11 '70':13 '80':15 'diana':7B 'disco':12 'electronic':17 'in':2A 'italo':20 'love':6A 'name':4A 'of':5A 'or':19 'ross':8B 's':14,16 'stop':1A 'supremes':10B 'the':3A,9B 'we':18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['soul', 'motown', '60s', 'female vocalists', 'pop']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620537632.6354265  (2021-05-09 07:20:32)
                             'size'  3453329