======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '117'
                                          'artist'  'Fats Domino'
                                     'text_people'  ''
                                         'release'  'Imperial  5386'
                                           'title'  "I'm In Love Again"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '124.6'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Imperial  5386'
'TBPM' (BPM (beats per minute))                     '124.6'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         "I'm In Love Again"
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fats Domino'
'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:lastfmtags'                                   ['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.58 dB'
'TXXX:replaygain_track_peak'                        '0.547826'

========================== row from database ==========================
                                              'id'  1501835
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/Fats Domino - I_m In Love Again 28-4-1956.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  117
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  2359090
                                           'mtime'  1622659468
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 I_m 28 4 1956 rock pop early rocknroll
                                      'tag_artist'  Fats Domino
                                     'tag_release'  Imperial  5386
                                       'tag_title'  I'm In Love Again
                                             'bpm'  124.6
                                    'search_title'  'again':6 'i':1 'im':3 'in':4 'love':5 'm':2
                                   'search_artist'  'domino':2 'fats':1
                                  'search_release'  '5386':2 'imperial':1
                                     'search_rest'  '00oldiepop':5 '1956':6 '28':9 '4':10 'country':4 'early':13 'exotica':2 'i':7 'jazz':1 'm':8 'oldies':3 'pop':12 'rock':11 'rocknroll':14
                                    'search_combo'  '00oldiepop':15 '1956':16 '28':19 '4':20 '5386':10C 'again':6A 'country':14 'domino':8B 'early':23 'exotica':12 'fats':7B 'i':1A,17 'im':3A 'imperial':9C 'in':4A 'jazz':11 'love':5A 'm':2A,18 'oldies':13 'pop':22 'rock':21 'rocknroll':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659467.978242  (2021-06-02 20:44:27)
                             'size'  2359090