======================== unified (from filesystem) ========================
                                         'bitrate'  '192.006'
                                        'duration'  '270'
                                          'artist'  'Nightmares On Wax'
                                     'text_people'  ''
                                         'release'  'Mind Elevation'
                                           'title'  'Know My Name'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['lounge', 'downtempo', 'trip hop', 'chillout', 'electronic']"
                                     'discogstags'  "['electronic', 'downtempo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '90.573'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Mind Elevation'
'TBPM' (BPM (beats per minute))                     '90.573'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Know My Name'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nightmares On Wax'
'TRCK' (Track number/Position in set)               '10'
'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', 'downtempo']
'TXXX:lastfmtags'                                   ['lounge', 'downtempo', 'trip hop', 'chillout', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.56 dB'
'TXXX:replaygain_track_peak'                        '0.527963'

========================== row from database ==========================
                                              'id'  1289186
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Nightmares On Wax/Mind Elevation/MBZ;#Nightmares On Wax;#Mind Elevation;#10;#Know My Name.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  270
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  6484310
                                           'mtime'  1636910799
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip MBZ;#Nightmares Wax;#Mind Elevation;#10;#Know electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Nightmares On Wax
                                     'tag_release'  Mind Elevation
                                       'tag_title'  Know My Name
                                             'bpm'  90.573
                                    'search_title'  'know':1 'my':2 'name':3
                                   'search_artist'  'nightmares':1 'on':2 'wax':3
                                  'search_release'  'elevation':2 'mind':1
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '10':12,15 'acid':22 'downtempo':21 'electronic':17 'elevation':11,14 'hop':19 'jazz':23 'know':13,16 'mbz':3,5 'mind':8,10 'nightmares':4,6 'or':20 'trip':18 'wax':7,9
                                    'search_combo'  '00poprockelectronic':9 '00trip':10 '10':20,23 'acid':30 'downtempo':29 'electronic':25 'elevation':8C,19,22 'hop':27 'jazz':31 'know':1A,21,24 'mbz':11,13 'mind':7C,16,18 'my':2A 'name':3A 'nightmares':4B,12,14 'on':5B 'or':28 'trip':26 'wax':6B,15,17
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'downtempo', 'trip hop', 'chillout', 'electronic']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'downtempo']

============================== file details ==============================
                                           'mtime'  1636910799.1858249  (2021-11-14 18:26:39)
                             'size'  6484310