======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '149'
                                          'artist'  'Perry Como'
                                     'text_people'  'Lee Pockriss/Paul Vance'
                                         'release'  'Greatest Hits Disc 2'
                                           'title'  'Catch a Falling Star'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-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-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'male vocalists', 'jazz', '50s', 'easy listening', 'christmas']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-easy'
                                             'bpm'  '121.555'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-019 POS 1'
'COMM:ID3v1 Comment:XXX'                            '58-019 POS 1'
'TALB' (Album/Movie/Show title)                     'Greatest Hits Disc 2'
'TBPM' (BPM (beats per minute))                     '121.555'
'TCOM' (Composer)                                   'Lee Pockriss/Paul Vance'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-easy'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Catch a Falling Star'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Perry Como'
'TPE2' (Band/orchestra/accompaniment)               'Perry Como'
'TPUB' (Publisher)                                  'RCA'
'TRCK' (Track number/Position in set)               '11'
'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', 'male vocalists', 'jazz', '50s', 'easy listening', 'christmas']
'TXXX:q-bass'                                       '4'
'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'                        '+0.39 dB'
'TXXX:replaygain_track_peak'                        '0.560227'

========================== row from database ==========================
                                              'id'  1429069
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-019 - Perry Como - Catch A Falling Star.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  149
                                           'genre'  prerock-vocal-easy
                                        'filesize'  5965715
                                           'mtime'  1621625786
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 019 A prerock vocal easy
                                      'tag_artist'  Perry Como
                                     'tag_release'  Greatest Hits Disc 2
                                       'tag_title'  Catch a Falling Star
                                             'bpm'  121.555
                                    'search_title'  'a':2 'catch':1 'falling':3 'star':4
                                   'search_artist'  'como':2 'perry':1
                                  'search_release'  '2':4 'disc':3 'greatest':1 'hits':2
                                     'search_rest'  '00oldiepop':5 '1958':6 '58':7 'a':8 'country':4 'easy':11 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':15 '1958':16 '2':10C '58':17 'a':2A,18 'catch':1A 'como':6B 'country':14 'disc':9C 'easy':21 'exotica':12 'falling':3A 'greatest':7C 'hits':8C 'jazz':11 'oldies':13 'perry':5B 'prerock':19 'star':4A 'vocal':20
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  10A
                                           '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'male vocalists', 'jazz', '50s', 'easy listening', 'christmas']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625785.7917347  (2021-05-21 21:36:25)
                             'size'  5965715