======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '181'
                                          'artist'  'Kitty Kallen'
                                     'text_people'  ''
                                         'release'  '100 Oldies Deel 34'
                                           'title'  'Little Things Mean A Lot'
                                           'quals'  ("['Q-JZFKS-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['jazz vocal', 'jazz', 'female vocalists', '50s', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '81'
                                      'tracktotal'  '100'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '84.667'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '100 Oldies Deel 34'
'TBPM' (BPM (beats per minute))                     '84.667'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1998'
'TENC' (Encoded by)                                 'Mister X'
'TIT2' (Title/songname/content description)         'Little Things Mean A Lot'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kitty Kallen'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '81/100'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf52.54.0'
'TXXX:NOTES'                                        'Medieval CUE Splitter (www.medieval.it)'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz vocal', 'jazz', 'female vocalists', '50s', 'oldies']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.77 dB'
'TXXX:replaygain_track_peak'                        '0.598211'

========================== row from database ==========================
                                              'id'  1322416
                                            'path'  /data/Music/Bulk/00poprockelectronic/100 oldies deel 35/81 Kitty Kallen - Little Things Mean A Lot.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  181
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  7745002
                                           'mtime'  1620565278
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic oldies deel 35 81 electronic generic or radio unsorted
                                      'tag_artist'  Kitty Kallen
                                     'tag_release'  100 Oldies Deel 34
                                       'tag_title'  Little Things Mean A Lot
                                             'bpm'  84.667
                                    'search_title'  'a':4 'little':1 'lot':5 'mean':3 'things':2
                                   'search_artist'  'kallen':2 'kitty':1
                                  'search_release'  '100':1 '34':4 'deel':3 'oldies':2
                                     'search_rest'  '00poprockelectronic':1 '35':4 '81':5 'deel':3 'electronic':6 'generic':7 'oldies':2 'or':8 'radio':9 'unsorted':10
                                    'search_combo'  '00poprockelectronic':12 '100':8C '34':11C '35':15 '81':16 'a':4A 'deel':10C,14 'electronic':17 'generic':18 'kallen':7B 'kitty':6B 'little':1A 'lot':5A 'mean':3A 'oldies':9C,13 'or':19 'radio':20 'things':2A 'unsorted':21
                                    'tag_tracknum'  81
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jazz vocal', 'jazz', 'female vocalists', '50s', 'oldies']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620565278.412719  (2021-05-09 15:01:18)
                             'size'  7745002