======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '491'
                                          'artist'  'Tabla Beat Science'
                                     'text_people'  ''
                                         'release'  'Tala Matrix'
                                           'title'  'Devotional'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', '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-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['world', 'asian underground', 'world fusion', 'tabla', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-m'
                                             'bpm'  '90.050'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tala Matrix'
'TBPM' (BPM (beats per minute))                     '90.050'
'TCON' (Content type, a.k.a. Genre)                 'loc-m'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Devotional'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tabla Beat Science'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['world', 'asian underground', 'world fusion', 'tabla', 'electronic']
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.61 dB'
'TXXX:replaygain_track_peak'                        '0.513013'

========================== row from database ==========================
                                              'id'  927302
                                            'path'  /data/Music/Bulk/00localcharacter/00south-europe-middle-east/Tabla Beat Science/Tala Matrix/06 Devotional.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  491
                                           'genre'  loc-m
                                        'filesize'  20141906
                                           'mtime'  1620526571
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00south europe middle east 06 loc m
                                      'tag_artist'  Tabla Beat Science
                                     'tag_release'  Tala Matrix
                                       'tag_title'  Devotional
                                             'bpm'  90.05
                                    'search_title'  'devotional':1
                                   'search_artist'  'beat':2 'science':3 'tabla':1
                                  'search_release'  'matrix':2 'tala':1
                                     'search_rest'  '00south':1 'east':4 'europe':2 'loc':5 'm':6 'middle':3
                                    'search_combo'  '00south':7 'beat':3B 'devotional':1A 'east':10 'europe':8 'loc':11 'm':12 'matrix':6C 'middle':9 'science':4B 'tabla':2B 'tala':5C
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', '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'  ['world', 'asian underground', 'world fusion', 'tabla', 'electronic']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620526570.8814242  (2021-05-09 04:16:10)
                             'size'  20141906