======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '450'
                                          'artist'  'Vibrasphere'
                                     'text_people'  ''
                                         'release'  'Selected Downbeats Vol. 2'
                                           'title'  'Spring Flood'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['psytrance', 'trance', 'chillout', 'progressive trance', 'ambient', "
 "'psychedelic']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '132.1'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'POPM:no@email'                                     POPM(email='no@email', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Selected Downbeats Vol. 2'
'TBPM' (BPM (beats per minute))                     '132.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2009'
'TIT1' (Content group description)                  '3'
'TIT2' (Title/songname/content description)         'Spring Flood'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Vibrasphere'
'TRCK' (Track number/Position in set)               '4'
'TXXX:DATE'                                         '2009'
'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'                                   ['psytrance',
 'trance',
 'chillout',
 'progressive trance',
 'ambient',
 'psychedelic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'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'                        '0.902201'

========================== row from database ==========================
                                              'id'  1357075
                                            'path'  /data/Music/Bulk/00poprockelectronic/Chronos - chillout-dub/Vibrasphere - Spring Flood.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  450
                                           'genre'  electronic
                                        'filesize'  18034703
                                           'mtime'  1636913949
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Chronos chillout dub electronic
                                      'tag_artist'  Vibrasphere
                                     'tag_release'  Selected Downbeats Vol. 2
                                       'tag_title'  Spring Flood
                                             'bpm'  132.1
                                    'search_title'  'flood':2 'spring':1
                                   'search_artist'  'vibrasphere':1
                                  'search_release'  '2':5 'downbeats':2 'selected':1 'vol':3,4
                                     'search_rest'  '00poprockelectronic':1 'chillout':3 'chronos':2 'dub':4 'electronic':5
                                    'search_combo'  '00poprockelectronic':9 '2':8C 'chillout':11 'chronos':10 'downbeats':5C 'dub':12 'electronic':13 'flood':2A 'selected':4C 'spring':1A 'vibrasphere':3B 'vol':6C,7C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9B
                                           '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-2', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['psytrance', 'trance', 'chillout', 'progressive trance', 'ambient', 'psychedelic']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913949.0078824  (2021-11-14 19:19:09)
                             'size'  18034703