======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '231'
                                          'artist'  "Let's Talk"
                                     'text_people'  ''
                                         'release'  'Luigi Donetallo'
                                           'title'  'If I Stay With You'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['synthwave', 'synthpop', 'electronic', 'retrowave', 'queue']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-we-synthwave or chillwave or retrowave'
                                             'bpm'  '100.2'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Luigi Donetallo'
'TBPM' (BPM (beats per minute))                     '100.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-synthwave or chillwave or retrowave'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'If I Stay With You'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               "Let's Talk"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['synthwave', 'synthpop', 'electronic', 'retrowave', 'queue']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.09 dB'
'TXXX:replaygain_track_peak'                        '0.635118'

========================== row from database ==========================
                                              'id'  1507070
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00synthwave/LuigiDonatello/Let_s Talk - If I Stay With You.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  231
                                           'genre'  electronic-we-synthwave or chillwave or retrowave
                                        'filesize'  3718488
                                           'mtime'  1620611045
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00synthwave LuigiDonatello Let_s electronic we synthwave or chillwave or retrowave
                                      'tag_artist'  Let's Talk
                                     'tag_release'  Luigi Donetallo
                                       'tag_title'  If I Stay With You
                                             'bpm'  100.2
                                    'search_title'  'i':2 'if':1 'stay':3 'with':4 'you':5
                                   'search_artist'  'let':1 'lets':3 's':2 'talk':4
                                  'search_release'  'donetallo':2 'luigi':1
                                     'search_rest'  '00poprockelectronic':1 '00synthwave':4 'chillwave':12 'disco':3 'donatello':15 'electronic':8 'let':6 'luigi':14 'luigidonatello':5 'or':11 'retrowave':13 's':7 'synthwave':10 'waves':2 'we':9
                                    'search_combo'  '00poprockelectronic':12 '00synthwave':15 'chillwave':23 'disco':14 'donatello':26 'donetallo':11C 'electronic':19 'i':2A 'if':1A 'let':6B,17 'lets':8B 'luigi':10C,25 'luigidonatello':16 'or':22 'retrowave':24 's':7B,18 'stay':3A 'synthwave':21 'talk':9B 'waves':13 'we':20 'with':4A 'you':5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['synthwave', 'synthpop', 'electronic', 'retrowave', 'queue']
                                        'tag_date'  2015
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620611044.759871  (2021-05-10 03:44:04)
                             'size'  3718488