======================== unified (from filesystem) ========================
                                         'bitrate'  '319.725'
                                        'duration'  '393'
                                          'artist'  'Pablo Bolivar'
                                     'text_people'  ''
                                         'release'  'Anjanas'
                                           'title'  'System Index'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-JZFKS-1', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['minimal techno', 'techno', 'dub techno', 'tech house', 'minimal']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  '11'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '122.957'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Anjanas'
'TBPM' (BPM (beats per minute))                     '122.957'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'System Index'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pablo Bolivar'
'TPE2' (Band/orchestra/accompaniment)               'Pablo Bolivar'
'TRCK' (Track number/Position in set)               '04/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['minimal techno', 'techno', 'dub techno', 'tech house', 'minimal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.77 dB'
'TXXX:replaygain_track_peak'                        '0.620480'

========================== row from database ==========================
                                              'id'  650538
                                            'path'  /data/Music/Bulk/00localcharacter/Bolivar, Pablo/(2006) Anjanas/04. System Index.mp3
                                         'working'  None
                                         'bitrate'  319
                                    'duration_sec'  393
                                           'genre'  electronic
                                        'filesize'  16026660
                                           'mtime'  1636912947
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Bolivar, (2006) 04. electronic
                                      'tag_artist'  Pablo Bolivar
                                     'tag_release'  Anjanas
                                       'tag_title'  System Index
                                             'bpm'  122.957
                                    'search_title'  'index':2 'system':1
                                   'search_artist'  'bolivar':2 'pablo':1
                                  'search_release'  'anjanas':1
                                     'search_rest'  '04':5,6 '2006':3,4 'bolivar':1,2 'electronic':7
                                    'search_combo'  '04':10,11 '2006':8,9 'anjanas':5C 'bolivar':4B,6,7 'electronic':12 'index':2A 'pablo':3B 'system':1A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['minimal techno', 'techno', 'dub techno', 'tech house', 'minimal']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912946.6971934  (2021-11-14 19:02:26)
                             'size'  16026660