======================== unified (from filesystem) ========================
                                         'bitrate'  '76.084'
                                        'duration'  '330'
                                          'artist'  'Karen Ann '
                                     'text_people'  ''
                                         'release'  'Dimitri - PopTropic'
                                           'title'  'In your Back'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-SYN-2', 'Q-BUSY-3', "
 "'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', 'Q-CHART-2', 'Q-JZFKS-1', 'q-drums-2', "
 "'q-other-2', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['female vocalists', 'french', 'singer-songwriter', 'indie', 'world']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-unsorted'
                                             'bpm'  '124.7'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - PopTropic'
'TBPM' (BPM (beats per minute))                     '124.7'
'TCON' (Content type, a.k.a. Genre)                 'ifs-unsorted'
'TIT2' (Title/songname/content description)         'In your Back'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Karen Ann '
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['female vocalists', 'french', 'singer-songwriter', 'indie', 'world']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.57 dB'
'TXXX:replaygain_track_peak'                        '0.571444'
'TXXX:youtube'                                      'fC8-4'

========================== row from database ==========================
                                              'id'  1477340
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/PopTropic/Karen Ann In your Back-MlnBI-fC8-4.mp3
                                         'working'  None
                                         'bitrate'  76
                                    'duration_sec'  330
                                           'genre'  ifs-unsorted
                                        'filesize'  3142890
                                           'mtime'  1676052920
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm MlnBI fC8 4 ifs unsorted
                                      'tag_artist'  Karen Ann 
                                     'tag_release'  Dimitri - PopTropic
                                       'tag_title'  In your Back
                                             'bpm'  124.7
                                    'search_title'  'back':3 'in':1 'your':2
                                   'search_artist'  'ann':2 'karen':1
                                  'search_release'  'dimitri':1 'pop':3 'poptropic':2 'tropic':4
                                     'search_rest'  '4':3 'bi':7 'c8':9 'f':8 'fc8':2 'ifs':4 'mln':6 'mlnbi':1 'unsorted':5
                                    'search_combo'  '4':12 'ann':5B 'back':3A 'bi':16 'c8':18 'dimitri':6C 'f':17 'fc8':11 'ifs':13 'in':1A 'karen':4B 'mln':15 'mlnbi':10 'pop':8C 'poptropic':7C 'tropic':9C 'unsorted':14 'your':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', 'Q-CHART-2', 'Q-JZFKS-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2']
                                      'lastfmtags'  ['female vocalists', 'french', 'singer-songwriter', 'indie', 'world']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676052920.3005345  (2023-02-10 19:15:20)
                             'size'  3142890