======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '395'
                                          'artist'  'Bluetech'
                                     'text_people'  ''
                                         'release'  'Prima Materia'
                                           'title'  'Burning Waters'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['psychill', 'deepspaceone', 'psybient', 'ambient', 'downtempo', 'chillout']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-psychill'
                                             'bpm'  '112.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'POPM:no@email'                                     POPM(email='no@email', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Prima Materia'
'TBPM' (BPM (beats per minute))                     '112.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-psychill'
'TDRC' (Recording time)                             '2003'
'TIT1' (Content group description)                  '3'
'TIT2' (Title/songname/content description)         'Burning Waters'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bluetech'
'TRCK' (Track number/Position in set)               '8'
'TXXX:DATE'                                         '2003'
'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'                                   ['psychill', 'deepspaceone', 'psybient', 'ambient', 'downtempo', 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.85 dB'
'TXXX:replaygain_track_peak'                        '0.645713'

========================== row from database ==========================
                                              'id'  1319744
                                            'path'  /data/Music/Bulk/00poprockelectronic/Chronos - chillout-dub/bluetech - burning waters.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  395
                                           'genre'  electronic-psychill
                                        'filesize'  9708275
                                           'mtime'  1636912616
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Chronos chillout dub bluetech burning waters electronic psychill
                                      'tag_artist'  Bluetech
                                     'tag_release'  Prima Materia
                                       'tag_title'  Burning Waters
                                             'bpm'  112.1
                                    'search_title'  'burning':1 'waters':2
                                   'search_artist'  'bluetech':1
                                  'search_release'  'materia':2 'prima':1
                                     'search_rest'  '00poprockelectronic':1 'bluetech':5 'burning':6 'chillout':3 'chronos':2 'dub':4 'electronic':8 'psychill':9 'waters':7
                                    'search_combo'  '00poprockelectronic':6 'bluetech':3B,10 'burning':1A,11 'chillout':8 'chronos':7 'dub':9 'electronic':13 'materia':5C 'prima':4C 'psychill':14 'waters':2A,12
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  8A
                                           '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-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['psychill', 'deepspaceone', 'psybient', 'ambient', 'downtempo', 'chillout']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912616.0958126  (2021-11-14 18:56:56)
                             'size'  9708275