======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '242'
                                          'artist'  'WSTRN'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'In2'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'soul', 'british', 'hip hop', 'united kingdom']"
                                     'discogstags'  "['rnb/swing', 'funk / soul', 'hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '98.120'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '98.120'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'In2'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'WSTRN'
'TPE2' (Band/orchestra/accompaniment)               'WSTRN'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rnb/swing', 'funk / soul', 'hip hop']
'TXXX:lastfmtags'                                   ['pop', 'soul', 'british', 'hip hop', 'united kingdom']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.59 dB'
'TXXX:replaygain_track_peak'                        '0.451032'

========================== row from database ==========================
                                              'id'  1291657
                                            'path'  /data/Music/Bulk/00poprockelectronic/2016/WSTRN - In2.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  242
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  9806468
                                           'mtime'  1620566364
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2016 hip hop or rnb or rap or turntablism
                                      'tag_artist'  WSTRN
                                     'tag_release'  None
                                       'tag_title'  In2
                                             'bpm'  98.12
                                    'search_title'  'in2':1
                                   'search_artist'  'wstrn':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '2016':2 'hip':3 'hop':4 'or':5 'rap':7 'rnb':6 'turntablism':8
                                    'search_combo'  '00poprockelectronic':3 '2016':4 'hip':5 'hop':6 'in2':1A 'or':7 'rap':9 'rnb':8 'turntablism':10 'wstrn':2B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'soul', 'british', 'hip hop', 'united kingdom']
                                        'tag_date'  2015
                                     'discogstags'  ['rnb/swing', 'funk / soul', 'hip hop']

============================== file details ==============================
                                           'mtime'  1620566364.3587084  (2021-05-09 15:19:24)
                             'size'  9806468