======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '125'
                                          'artist'  'Buddy Holly & The Crickets'
                                     'text_people'  'Paul Anka'
                                         'release'  'Greatest Hits [MCA]'
                                           'title'  "It Doesn't Matter Anymore"
                                           '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-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rockabilly', 'rock and roll', '50s', 'rock n roll', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rockabilly'
                                             'bpm'  '114.479'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-112 POS 13'
'COMM:ID3v1 Comment:XXX'                            '59-112 POS 13'
'TALB' (Album/Movie/Show title)                     'Greatest Hits [MCA]'
'TBPM' (BPM (beats per minute))                     '114.479'
'TCOM' (Composer)                                   'Paul Anka'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rockabilly'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         "It Doesn't Matter Anymore"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Buddy Holly & The Crickets'
'TRCK' (Track number/Position in set)               '17'
'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'                                   ['rockabilly', 'rock and roll', '50s', 'rock n roll', 'oldies']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.671602'

========================== row from database ==========================
                                              'id'  1513985
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-112 - Buddy Holly & The Crickets - It Doesn_t Matter Anymore.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  125
                                           'genre'  rock-pop-early-rockabilly
                                        'filesize'  5011328
                                           'mtime'  1622659481
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 112 Doesn_t rock pop early rockabilly
                                      'tag_artist'  Buddy Holly & The Crickets
                                     'tag_release'  Greatest Hits [MCA]
                                       'tag_title'  It Doesn't Matter Anymore
                                             'bpm'  114.479
                                    'search_title'  'anymore':6 'doesn':2 'doesnt':4 'it':1 'matter':5 't':3
                                   'search_artist'  'buddy':1 'crickets':4 'holly':2 'the':3
                                  'search_release'  'greatest':1 'hits':2 'mca':3,4
                                     'search_rest'  '00oldiepop':5 '112':8 '1959':6 '59':7 'country':4 'doesn':9 'early':13 'exotica':2 'jazz':1 'oldies':3 'pop':12 'rock':11 'rockabilly':14 't':10
                                    'search_combo'  '00oldiepop':19 '112':22 '1959':20 '59':21 'anymore':6A 'buddy':7B 'country':18 'crickets':10B 'doesn':2A,23 'doesnt':4A 'early':27 'exotica':16 'greatest':11C 'hits':12C 'holly':8B 'it':1A 'jazz':15 'matter':5A 'mca':13C,14C 'oldies':17 'pop':26 'rock':25 'rockabilly':28 't':3A,24 'the':9B
                                    'tag_tracknum'  17
                                      '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-2']
                                      'lastfmtags'  ['rockabilly', 'rock and roll', '50s', 'rock n roll', 'oldies']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659481.3445284  (2021-06-02 20:44:41)
                             'size'  5011328