======================== unified (from filesystem) ========================
                                         'bitrate'  '179.677'
                                        'duration'  '207'
                                          'artist'  "Dexy's Midnight Runner"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Geno'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', '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'  "['new wave', '80s', 'british', 'post-punk', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '123.0'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '123.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Geno'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               "Dexy's Midnight Runner"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '000,189'
'TXXX:Mp3gain_undo'                                 '+005,+005,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'                                   ['new wave', '80s', 'british', 'post-punk', 'pop']
'TXXX:q-bass'                                       '2'
'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'                        '+0.48 dB'
'TXXX:replaygain_track_peak'                        '0.421725'

========================== row from database ==========================
                                              'id'  1526337
                                            'path'  /data/Music/Bulk/00poprockelectronic/Disco 70_s 80_s/Best Sellers Of The 80's Vol 1/Dexy_s Midnight Runner - Geno.mp3
                                         'working'  None
                                         'bitrate'  179
                                    'duration_sec'  207
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  4670334
                                           'mtime'  1620569071
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Disco 70_s 80_s Best Sellers Of The 80's Vol 1 Dexy_s electronic we disco or italo
                                      'tag_artist'  Dexy's Midnight Runner
                                     'tag_release'  None
                                       'tag_title'  Geno
                                             'bpm'  123.0
                                    'search_title'  'geno':1
                                   'search_artist'  'dexy':1 'dexys':3 'midnight':4 'runner':5 's':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1':13 '70':3 '80':5 '80s':11 'best':7 'dexy':14 'disco':2 'electronic':16 'italo':19 'of':9 'or':18 's':4,6,15 'sellers':8 'the':10 'vol':12 'we':17
                                    'search_combo'  '00poprockelectronic':7 '1':19 '70':9 '80':11 '80s':17 'best':13 'dexy':2B,20 'dexys':4B 'disco':8 'electronic':22 'geno':1A 'italo':25 'midnight':5B 'of':15 'or':24 'runner':6B 's':3B,10,12,21 'sellers':14 'the':16 'vol':18 'we':23
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           '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-2', 'q-grit-1']
                                      'lastfmtags'  ['new wave', '80s', 'british', 'post-punk', 'pop']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620569071.1057894  (2021-05-09 16:04:31)
                             'size'  4670334