======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '147'
                                          'artist'  'The Barry Sisters'
                                     'text_people'  ''
                                         'release'  'Main Glick'
                                           'title'  'Ketzele Baroiges'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'jewish', 'jazz', 'big band', 'yiddish', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '143.1'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Main Glick'
'TBPM' (BPM (beats per minute))                     '143.1'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Ketzele Baroiges'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Barry Sisters'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'jewish', 'jazz', 'big band', 'yiddish', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.46 dB'
'TXXX:replaygain_track_peak'                        '0.390498'

========================== row from database ==========================
                                              'id'  730251
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/the barry sisters - mein glick (russian swing)/sestryi_berri_(the_barry_sisters)_-_06_-_ketzele_baroiges.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  147
                                           'genre'  loc-unsorted
                                        'filesize'  3551827
                                           'mtime'  1678463445
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm the barry sisters mein glick (russian swing) sestryi_berri_(the_barry_sisters)_ _06_ _ketzele_baroiges loc unsorted
                                      'tag_artist'  The Barry Sisters
                                     'tag_release'  Main Glick
                                       'tag_title'  Ketzele Baroiges
                                             'bpm'  143.1
                                    'search_title'  'baroiges':2 'ketzele':1
                                   'search_artist'  'barry':2 'sisters':3 'the':1
                                  'search_release'  'glick':2 'main':1
                                     'search_rest'  '06':20 'baroiges':22 'barry':2,13,18 'berri':11,16 'glick':5 'ketzele':21 'loc':23 'mein':4 'russian':6,7 'sestryi':10,15 'sisters':3,14,19 'swing':8,9 'the':1,12,17 'unsorted':24
                                    'search_combo'  '06':27 'baroiges':2A,29 'barry':4B,9,20,25 'berri':18,23 'glick':7C,12 'ketzele':1A,28 'loc':30 'main':6C 'mein':11 'russian':13,14 'sestryi':17,22 'sisters':5B,10,21,26 'swing':15,16 'the':3B,8,19,24 'unsorted':31
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['oldies', 'jewish', 'jazz', 'big band', 'yiddish', 'swing']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678463444.930604  (2023-03-10 16:50:44)
                             'size'  3551827