======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '366'
                                          'artist'  'Undermathic'
                                     'text_people'  ''
                                         'release'  '10:10PM'
                                           'title'  '10:10PM'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-1', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['downtempo', 'idm', 'electronic', 'tympanik audio', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  '11'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic;electronic-unsorted'
                                             'bpm'  '139.9'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '10:10PM'
'TBPM' (BPM (beats per minute))                     '139.9'
'TCON' (Content type, a.k.a. Genre)                 ['electronic', 'electronic-unsorted', 'electronic']
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         '10:10PM'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Undermathic'
'TPE2' (Band/orchestra/accompaniment)               'Undermathic'
'TPUB' (Publisher)                                  'Tympanik Audio'
'TRCK' (Track number/Position in set)               '07/11'
'TSRC' (ISRC (international standard recording code))  'TA047'
'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'                                   ['downtempo', 'idm', 'electronic', 'tympanik audio', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.28 dB'
'TXXX:replaygain_track_peak'                        '0.516712'

========================== row from database ==========================
                                              'id'  1374148
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Undermathic - 2010 10-10PM/07. 10-10PM.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  366
                                           'genre'  electronic;electronic-unsorted
                                        'filesize'  14913719
                                           'mtime'  1636913528
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer 2010 07. electronic;electronic unsorted
                                      'tag_artist'  Undermathic
                                     'tag_release'  10:10PM
                                       'tag_title'  10:10PM
                                             'bpm'  139.9
                                    'search_title'  '10':1 '1010pm':3 '10pm':2
                                   'search_artist'  'undermathic':1
                                  'search_release'  '10':1 '1010pm':3 '10pm':2
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 '07':4,5 '2010':3 'electronic':6,7,8,9 'unsorted':10
                                    'search_combo'  '00calmer':9 '00poprockelectronic':8 '07':11,12 '10':1A,5C '1010pm':3A,7C '10pm':2A,6C '2010':10 'electronic':13,14,15,16 'undermathic':4B 'unsorted':17
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  10A
                                           '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-1', 'q-busy-1', 'q-drums-3', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['downtempo', 'idm', 'electronic', 'tympanik audio', 'ambient']
                                        'tag_date'  2010
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913528.2817705  (2021-11-14 19:12:08)
                             'size'  14913719