======================== unified (from filesystem) ========================
                                         'bitrate'  '320.122'
                                        'duration'  '134'
                                          'artist'  'Bill Haley & His Comets'
                                     'text_people'  ''
                                         'release'  'From The Original Master Tapes'
                                           'title'  "(We're Gonna) Rock Around The Clock"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'rock n roll', 'rock and roll', 'rockabilly', 'rock', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '89.493'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '54-220 POS 23'
'COMM:ID3v1 Comment:XXX'                            '54-220 POS 23'
'TALB' (Album/Movie/Show title)                     'From The Original Master Tapes'
'TBPM' (BPM (beats per minute))                     '89.493'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         "(We're Gonna) Rock Around The Clock"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bill Haley & His Comets'
'TRCK' (Track number/Position in set)               '1'
'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', 'rockabilly', 'rock', '50s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.44 dB'
'TXXX:replaygain_track_peak'                        '0.514783'

========================== row from database ==========================
                                              'id'  1502780
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/54-220 - Bill Haley & His Comets - (We_re Gonna) Rock Around The Clock.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  134
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  5367598
                                           'mtime'  1622659456
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1954 54 220 (We_re rock pop early rocknroll
                                      'tag_artist'  Bill Haley & His Comets
                                     'tag_release'  From The Original Master Tapes
                                       'tag_title'  (We're Gonna) Rock Around The Clock
                                             'bpm'  89.493
                                    'search_title'  'around':7 'clock':9 'gonna':4,5 're':2 'rock':6 'the':8 'we':1 'were':3
                                   'search_artist'  'bill':1 'comets':4 'haley':2 'his':3
                                  'search_release'  'from':1 'master':4 'original':3 'tapes':5 'the':2
                                     'search_rest'  '00oldiepop':5 '1954':6 '220':8 '54':7 'country':4 'early':15 'exotica':2 'jazz':1 'oldies':3 'pop':14 're':10,12 'rock':13 'rocknroll':16 'we':9,11
                                    'search_combo'  '00oldiepop':23 '1954':24 '220':26 '54':25 'around':7A 'bill':10B 'clock':9A 'comets':13B 'country':22 'early':33 'exotica':20 'from':14C 'gonna':4A,5A 'haley':11B 'his':12B 'jazz':19 'master':17C 'oldies':21 'original':16C 'pop':32 're':2A,28,30 'rock':6A,31 'rocknroll':34 'tapes':18C 'the':8A,15C 'we':1A,27,29 'were':3A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  12B
                                           '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-4', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['oldies', 'rock n roll', 'rock and roll', 'rockabilly', 'rock', '50s']
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659456.39201  (2021-06-02 20:44:16)
                             'size'  5367598