======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '174'
                                          'artist'  'Tom Petty'
                                     'text_people'  ''
                                         'release'  'Hits of the 80s'
                                           'title'  "I Won't Back Down"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'rock', 'singer songwriter', 'folk', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  ('electronic-generic or '
 'radio-unsorted;rock-cppex;ifs-songwriter-folk;ifs-songwriter-rock')
                                             'bpm'  '113.900'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Hits of the 80s'
'TBPM' (BPM (beats per minute))                     '113.900'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted',
 'rock-cppex',
 'ifs-songwriter-folk',
 'ifs-songwriter-rock']
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         "I Won't Back Down"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Petty'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rock', 'singer songwriter', 'folk', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.78 dB'
'TXXX:replaygain_track_peak'                        '0.720122'

========================== row from database ==========================
                                              'id'  1529357
                                            'path'  /data/Music/Bulk/00poprockelectronic/Hits Of The 80_s/Tom Petty - I Won_t Back Down.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  174
                                           'genre'  electronic-generic or radio-unsorted;rock-cppex;ifs-songwriter-folk;ifs-songwriter-rock
                                        'filesize'  2803018
                                           'mtime'  1642097621
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Of The 80_s Won_t electronic generic or radio unsorted;rock cppex;ifs songwriter folk;ifs songwriter rock
                                      'tag_artist'  Tom Petty
                                     'tag_release'  Hits of the 80s
                                       'tag_title'  I Won't Back Down
                                             'bpm'  113.9
                                    'search_title'  'back':5 'down':6 'i':1 't':3 'won':2 'wont':4
                                   'search_artist'  'petty':2 'tom':1
                                  'search_release'  '80s':4 'hits':1 'of':2 'the':3
                                     'search_rest'  '00poprockelectronic':1 '80':4 'cppex':16,18 'electronic':8 'folk':21,23 'generic':9 'ifs':17,19,22,24 'of':2 'or':10 'radio':11 'rock':13,15,25 's':5 'songwriter':20 't':7 'the':3 'unsorted':12,14 'won':6
                                    'search_combo'  '00poprockelectronic':13 '80':16 '80s':12C 'back':5A 'cppex':28,30 'down':6A 'electronic':20 'folk':33,35 'generic':21 'hits':9C 'i':1A 'ifs':29,31,34,36 'of':10C,14 'or':22 'petty':8B 'radio':23 'rock':25,27,37 's':17 'songwriter':32 't':3A,19 'the':11C,15 'tom':7B 'unsorted':24,26 'won':2A,18 'wont':4A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['80s', 'rock', 'singer songwriter', 'folk', 'classic rock']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642097621.2534072  (2022-01-13 19:13:41)
                             'size'  2803018