======================== unified (from filesystem) ========================
                                         'bitrate'  '100.995'
                                        'duration'  '185'
                                          'artist'  'Bainc Didonc'
                                     'text_people'  ''
                                         'release'  'Dimitri 60s 70s'
                                           'title'  '4 Cheveux Dans Le Vent'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-3', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  ("['french', 'freakbeat', '60s', 'trippy german deutsche bier trinkhalle', "
 "'feini feini']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '124.5'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri 60s 70s'
'TBPM' (BPM (beats per minute))                     '124.5'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         '4 Cheveux Dans Le Vent'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bainc Didonc'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:compatible_brands'                            'isomiso2mp41'
'TXXX:lastfmtags'                                   ['french',
 'freakbeat',
 '60s',
 'trippy german deutsche bier trinkhalle',
 'feini feini']
'TXXX:major_brand'                                  'isom'
'TXXX:minor_version'                                '512'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.38 dB'
'TXXX:replaygain_track_peak'                        '0.391782'
'TXXX:youtube'                                      'Arqg9MLXIFs'

========================== row from database ==========================
                                              'id'  1477477
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/60s70s/Bainc Didonc - 4 Cheveux Dans Le Vent-Arqg9MLXIFs.mp3
                                         'working'  None
                                         'bitrate'  101
                                    'duration_sec'  185
                                           'genre'  loc-eur-france
                                        'filesize'  2350443
                                           'mtime'  1620533038
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 60s70s Arqg9MLXIFs loc eur france
                                      'tag_artist'  Bainc Didonc
                                     'tag_release'  Dimitri 60s 70s
                                       'tag_title'  4 Cheveux Dans Le Vent
                                             'bpm'  124.5
                                    'search_title'  '4':1 'cheveux':2 'dans':3 'le':4 'vent':5
                                   'search_artist'  'bainc':1 'didonc':2
                                  'search_release'  '60s':2 '70s':3 'dimitri':1
                                     'search_rest'  '60s70s':1 'arqg9mlxifs':2 'eur':4 'france':5 'loc':3
                                    'search_combo'  '4':1A '60s':9C '60s70s':11 '70s':10C 'arqg9mlxifs':12 'bainc':6B 'cheveux':2A 'dans':3A 'didonc':7B 'dimitri':8C 'eur':14 'france':15 'le':4A 'loc':13 'vent':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  ['french', 'freakbeat', '60s', 'trippy german deutsche bier trinkhalle', 'feini feini']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533037.745915  (2021-05-09 06:03:57)
                             'size'  2350443