======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '160'
                                          'artist'  'Wayne Satkamp'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Barber Hair Blues [1966]'
                                           'quals'  ("['Q-OLDST-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-novelty;set-th-hippies'
                                             'bpm'  '105.808'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '105.808'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty', 'set-th-hippies']
'TIT2' (Title/songname/content description)         'Barber Hair Blues [1966]'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wayne Satkamp'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf52.54.0'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:compatible_brands'                            'isommp42'
'TXXX:major_brand'                                  'mp42'
'TXXX:minor_version'                                '0'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.27 dB'
'TXXX:replaygain_track_peak'                        '0.404166'

========================== row from database ==========================
                                              'id'  766981
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/hippies/Wayne Satkamp - Barber Hair Blues [1966].mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  160
                                           'genre'  set-th-novelty;set-th-hippies
                                        'filesize'  2569806
                                           'mtime'  1621428771
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes hippies set th novelty;set th hippies
                                      'tag_artist'  Wayne Satkamp
                                     'tag_release'  None
                                       'tag_title'  Barber Hair Blues [1966]
                                             'bpm'  105.808
                                    'search_title'  '1966':4,5 'barber':1 'blues':3 'hair':2
                                   'search_artist'  'satkamp':2 'wayne':1
                                  'search_release'  
                                     'search_rest'  '0novelty':2 '0playlists':1 'hippies':4 'novelty':7,9 'set':5,8,10 'th':6 'themes':3
                                    'search_combo'  '0novelty':9 '0playlists':8 '1966':4A,5A 'barber':1A 'blues':3A 'hair':2A 'hippies':11 'novelty':14,16 'satkamp':7B 'set':12,15,17 'th':13 'themes':10 'wayne':6B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621428770.7234566  (2021-05-19 14:52:50)
                             'size'  2569806