======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '243'
                                          'artist'  'Talking Heads'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Road to Nowhere'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'alternative', 'post punk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo;electronic-we-new wave or post punk'
                                             'bpm'  '110.0'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '110.0'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-we-disco or italo', 'electronic-we-new wave or post punk']
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Road to Nowhere'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Talking Heads'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '000,191'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'alternative', 'post punk', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+1.13 dB'
'TXXX:replaygain_track_peak'                        '0.551157'

========================== row from database ==========================
                                              'id'  1530576
                                            'path'  /data/Music/Bulk/00poprockelectronic/Disco 70_s 80_s/Greatest Hits Of The 80's- Volume 1 to 8/Talking Heads - Road to Nowhere.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  243
                                           'genre'  electronic-we-disco or italo;electronic-we-new wave or post punk
                                        'filesize'  3904889
                                           'mtime'  1620569107
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Disco 70_s 80_s Greatest Hits Of The 80's Volume 1 8 electronic we disco or italo;electronic we new wave or post punk
                                      'tag_artist'  Talking Heads
                                     'tag_release'  None
                                       'tag_title'  Road to Nowhere
                                             'bpm'  110.0
                                    'search_title'  'nowhere':3 'road':1 'to':2
                                   'search_artist'  'heads':2 'talking':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1':13 '70':3 '8':14 '80':5 '80s':11 'disco':2 'electronic':15,19,21 'greatest':7 'hits':8 'italo':18,20 'new':22 'of':9 'or':17 'post':24 'punk':25 's':4,6 'the':10 'volume':12 'wave':23 'we':16
                                    'search_combo'  '00poprockelectronic':6 '1':18 '70':8 '8':19 '80':10 '80s':16 'disco':7 'electronic':20,24,26 'greatest':12 'heads':5B 'hits':13 'italo':23,25 'new':27 'nowhere':3A 'of':14 'or':22 'post':29 'punk':30 'road':1A 's':9,11 'talking':4B 'the':15 'to':2A 'volume':17 'wave':28 'we':21
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'new wave', 'alternative', 'post punk', 'rock']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620569106.8097475  (2021-05-09 16:05:06)
                             'size'  3904889