======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '194'
                                          'artist'  'Phyllis Robins'
                                     'text_people'  ''
                                         'release'  'Rex  8678'
                                           'title'  "I'm In The Mood For Love (+ Fred Hartley's Orchestra)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['crooners', 'myhitparade']"
                                     'discogstags'  "['pop', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '128.251'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Rex  8678'
'TBPM' (BPM (beats per minute))                     '128.251'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         "I'm In The Mood For Love (+ Fred Hartley's Orchestra)"
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Phyllis Robins'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['pop', 'vocal']
'TXXX:lastfmtags'                                   ['crooners', 'myhitparade']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.42 dB'
'TXXX:replaygain_track_peak'                        '0.544792'

========================== row from database ==========================
                                              'id'  1499766
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1935/Phyllis Robins - I_m In The Mood For Love (+ Fred Hartley_s Orchestra) 1-12-1935.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  194
                                           'genre'  prerock-band
                                        'filesize'  3886898
                                           'mtime'  1620560383
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1935 I_m Hartley_s 1 12 1935 prerock band
                                      'tag_artist'  Phyllis Robins
                                     'tag_release'  Rex  8678
                                       'tag_title'  I'm In The Mood For Love (+ Fred Hartley's Orchestra)
                                             'bpm'  128.251
                                    'search_title'  'for':7 'fred':9 'hartley':10 'hartleys':12 'i':1 'im':3 'in':4 'love':8 'm':2 'mood':6 'orchestra':13,14 's':11 'the':5
                                   'search_artist'  'phyllis':1 'robins':2
                                  'search_release'  '8678':2 'rex':1
                                     'search_rest'  '00oldiepop':5 '1':11 '1935':6 'band':13 'country':4 'exotica':2 'hartley':9 'i':7 'jazz':1 'm':8 'oldies':3 'prerock':12 's':10
                                    'search_combo'  '00oldiepop':23 '1':29 '1935':24 '8678':18C 'band':31 'country':22 'exotica':20 'for':7A 'fred':9A 'hartley':10A,27 'hartleys':12A 'i':1A,25 'im':3A 'in':4A 'jazz':19 'love':8A 'm':2A,26 'mood':6A 'oldies':21 'orchestra':13A,14A 'phyllis':15B 'prerock':30 'rex':17C 'robins':16B 's':11A,28 'the':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           '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-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['crooners', 'myhitparade']
                                        'tag_date'  1935
                                     'discogstags'  ['pop', 'vocal']

============================== file details ==============================
                                           'mtime'  1620560382.9654636  (2021-05-09 13:39:42)
                             'size'  3886898