======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '230'
                                          'artist'  'Art Farmer'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I've Never Been In Love Before"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['hard bop', 'jazz trumpet', 'jazz', 'trumpet', 'bebop']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'prerock-bebop'
                                             'bpm'  '140.141'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '140.141'
'TCON' (Content type, a.k.a. Genre)                 'prerock-bebop'
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         "I've Never Been In Love Before"
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Art Farmer'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['hard bop', 'jazz trumpet', 'jazz', 'trumpet', 'bebop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.02 dB'
'TXXX:replaygain_track_peak'                        '0.569516'

========================== row from database ==========================
                                              'id'  1504071
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/Art Farmer - I_ve Never Been In Love Before 1954.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  230
                                           'genre'  prerock-bebop
                                        'filesize'  4618137
                                           'mtime'  1620561331
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1954 I_ve 1954 prerock bebop
                                      'tag_artist'  Art Farmer
                                     'tag_release'  None
                                       'tag_title'  I've Never Been In Love Before
                                             'bpm'  140.141
                                    'search_title'  'been':5 'before':8 'i':1 'in':6 'ive':3 'love':7 'never':4 've':2
                                   'search_artist'  'art':1 'farmer':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1954':6 'bebop':10 'country':4 'exotica':2 'i':7 'jazz':1 'oldies':3 'prerock':9 've':8
                                    'search_combo'  '00oldiepop':15 '1954':16 'art':9B 'bebop':20 'been':5A 'before':8A 'country':14 'exotica':12 'farmer':10B 'i':1A,17 'in':6A 'ive':3A 'jazz':11 'love':7A 'never':4A 'oldies':13 'prerock':19 've':2A,18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['hard bop', 'jazz trumpet', 'jazz', 'trumpet', 'bebop']
                                        'tag_date'  1954
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620561330.8423173  (2021-05-09 13:55:30)
                             'size'  4618137