======================== unified (from filesystem) ========================
                                         'bitrate'  '320.196'
                                        'duration'  '83'
                                          'artist'  'Buchanan & Goodman'
                                     'text_people'  ''
                                         'release'  'Greatest Fables'
                                           'title'  'Santa & The Satellite Part'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'halloween', 'skit', '50s', 'rock']"
                                     'discogstags'  "['break-in', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '90.050'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Greatest Fables'
'TBPM' (BPM (beats per minute))                     '90.050'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Santa & The Satellite Part'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Buchanan & Goodman'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['break-in', 'pop']
'TXXX:lastfmtags'                                   ['rock and roll', 'halloween', 'skit', '50s', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.16 dB'
'TXXX:replaygain_track_peak'                        '0.502303'

========================== row from database ==========================
                                              'id'  1444516
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-224b - Buchanan & Goodman - Santa & The Satellite Part 2.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  83
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  3339451
                                           'mtime'  1622659422
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 224b 2 rock pop early rocknroll
                                      'tag_artist'  Buchanan & Goodman
                                     'tag_release'  Greatest Fables
                                       'tag_title'  Santa & The Satellite Part
                                             'bpm'  90.05
                                    'search_title'  'part':4 'santa':1 'satellite':3 'the':2
                                   'search_artist'  'buchanan':1 'goodman':2
                                  'search_release'  'fables':2 'greatest':1
                                     'search_rest'  '00oldiepop':5 '1957':6 '2':8 '224b':7 'country':4 'early':11 'exotica':2 'jazz':1 'oldies':3 'pop':10 'rock':9 'rocknroll':12
                                    'search_combo'  '00oldiepop':13 '1957':14 '2':16 '224b':15 'buchanan':5B 'country':12 'early':19 'exotica':10 'fables':8C 'goodman':6B 'greatest':7C 'jazz':9 'oldies':11 'part':4A 'pop':18 'rock':17 'rocknroll':20 'santa':1A 'satellite':3A 'the':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'halloween', 'skit', '50s', 'rock']
                                        'tag_date'  1957
                                     'discogstags'  ['break-in', 'pop']

============================== file details ==============================
                                           'mtime'  1622659421.866937  (2021-06-02 20:43:41)
                             'size'  3339451