======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '124'
                                          'artist'  'The Astronauts'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Chilli Charlie (Trial, 1960)'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'anarcho punk', 'post punk', 'instrumental', 'surf rock']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'set-th-novelty'
                                             'bpm'  '88.865'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '88.865'
'TCON' (Content type, a.k.a. Genre)                 'set-th-novelty'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Chilli Charlie (Trial, 1960)'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Astronauts'
'TXXX:Mp3gain_minmax'                               '082,207'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'reggae'
'TXXX:lastfmtags'                                   ['surf', 'anarcho punk', 'post punk', 'instrumental', 'surf rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.547034'

========================== row from database ==========================
                                              'id'  766813
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Zimelis [Chow, Baby!]/The Astronauts - Chilli Charlie (Trial, 1960).mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  124
                                           'genre'  set-th-novelty
                                        'filesize'  1501134
                                           'mtime'  1620343094
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Zimelis [Chow, Baby!] set th novelty
                                      'tag_artist'  The Astronauts
                                     'tag_release'  None
                                       'tag_title'  Chilli Charlie (Trial, 1960)
                                             'bpm'  88.865
                                    'search_title'  '1960':5,6 'charlie':2 'chilli':1 'trial':3,4
                                   'search_artist'  'astronauts':2 'the':1
                                  'search_release'  
                                     'search_rest'  'baby':8,9 'chow':6,7 'country':4 'exotica':2 'jazz':1 'novelty':12 'oldies':3 'set':10 'th':11 'zimelis':5
                                    'search_combo'  '1960':5A,6A 'astronauts':8B 'baby':16,17 'charlie':2A 'chilli':1A 'chow':14,15 'country':12 'exotica':10 'jazz':9 'novelty':20 'oldies':11 'set':18 'th':19 'the':7B 'trial':3A,4A 'zimelis':13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'anarcho punk', 'post punk', 'instrumental', 'surf rock']
                                        'tag_date'  1960
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1620343094.1688995  (2021-05-07 01:18:14)
                             'size'  1501134