======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '321'
                                          'artist'  'Bluetech'
                                     'text_people'  ''
                                         'release'  'Phoenix Rising'
                                           'title'  'Kingdom of the Blind (Third I Mix)'
                                           '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'  '3'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-psychill'
                                             'bpm'  '90.0'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'POPM:no@email'                                     POPM(email='no@email', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Phoenix Rising'
'TBPM' (BPM (beats per minute))                     '90.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-psychill'
'TDRC' (Recording time)                             '2008'
'TIT1' (Content group description)                  '3'
'TIT2' (Title/songname/content description)         'Kingdom of the Blind (Third I Mix)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bluetech'
'TRCK' (Track number/Position in set)               '3'
'TXXX:DATE'                                         '2008'
'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'                        '-1.30 dB'
'TXXX:replaygain_track_peak'                        '0.597583'

========================== row from database ==========================
                                              'id'  1352837
                                            'path'  /data/Music/Bulk/00poprockelectronic/Chronos - chillout-dub/Bluetech - kingdom of the blind (third i mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  321
                                           'genre'  electronic-psychill
                                        'filesize'  12862467
                                           'mtime'  1636912450
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Chronos chillout dub kingdom blind (third mix) electronic psychill
                                      'tag_artist'  Bluetech
                                     'tag_release'  Phoenix Rising
                                       'tag_title'  Kingdom of the Blind (Third I Mix)
                                             'bpm'  90.0
                                    'search_title'  'blind':4 'i':7 'kingdom':1 'mix':8,9 'of':2 'the':3 'third':5,6
                                   'search_artist'  'bluetech':1
                                  'search_release'  'phoenix':1 'rising':2
                                     'search_rest'  '00poprockelectronic':1 'blind':6 'chillout':3 'chronos':2 'dub':4 'electronic':11 'kingdom':5 'mix':9,10 'psychill':12 'third':7,8
                                    'search_combo'  '00poprockelectronic':13 'blind':4A,18 'bluetech':10B 'chillout':15 'chronos':14 'dub':16 'electronic':23 'i':7A 'kingdom':1A,17 'mix':8A,9A,21,22 'of':2A 'phoenix':11C 'psychill':24 'rising':12C 'the':3A 'third':5A,6A,19,20
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  5A
                                           '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'  2008
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912449.861901  (2021-11-14 18:54:09)
                             'size'  12862467