======================== unified (from filesystem) ========================
                                         'bitrate'  '155.213'
                                        'duration'  '169'
                                          'artist'  'Naftule Brandwein'
                                     'text_people'  ''
                                         'release'  'Yiddish Songs: Traditionals (1911-1950)'
                                           'title'  'Naftule Shpilt Far Dem Rebn'
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                                      'lastfmtags'  "['jewish', 'old klezmer', 'clarinet', 'all', 'klezmer']"
                                     'discogstags'  "['folk, world, & country', 'klezmer']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '18'
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer'
                                             'bpm'  '153'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Yiddish Songs: Traditionals (1911-1950)'
'TBPM' (BPM (beats per minute))                     '153'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-gypsy or balkan or klezmer'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '1930'
'TIT2' (Title/songname/content description)         'Naftule Shpilt Far Dem Rebn'
'TKEY' (Initial key)                                '3B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Naftule Brandwein'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '3/4'
'TPUB' (Publisher)                                  'Documents'
'TRCK' (Track number/Position in set)               '3/18'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Brandwein, Naftule'
'TSRC' (ISRC (international standard recording code))  'DEU240404848'
'TXXX:ASIN'                                         'B0002KP5VM'
'TXXX:Artists'                                      'Naftule Brandwein'
'TXXX:BARCODE'                                      '4011222220479'
'TXXX:CATALOGNUMBER'                                '222047'
'TXXX:LABEL'                                        'Membran International GmbH'
'TXXX:MEDIA'                                        'CD'
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'TXXX:discogstags'                                  ['folk, world, & country', 'klezmer']
'TXXX:lastfmtags'                                   ['jewish', 'old klezmer', 'clarinet', 'all', 'klezmer']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '1'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
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'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.27 dB'
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========================== row from database ==========================
                                              'id'  1111382
                                            'path'  /data/Music/Bulk/00localcharacter/2004 - Yiddish Songs (Traditionals - 1911-1950)/3.03. Naftule Shpilt Far Dem Rebn (Naftule Brandwein).mp3
                                         'working'  None
                                         'bitrate'  155
                                    'duration_sec'  169
                                           'genre'  loc-style-gypsy or balkan or klezmer
                                        'filesize'  3326214
                                           'mtime'  1643982347
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 2004 (Traditionals 3.03. (Naftule Brandwein) loc style gypsy or balkan or klezmer
                                      'tag_artist'  Naftule Brandwein
                                     'tag_release'  Yiddish Songs: Traditionals (1911-1950)
                                       'tag_title'  Naftule Shpilt Far Dem Rebn
                                             'bpm'  153.0
                                    'search_title'  'dem':4 'far':3 'naftule':1 'rebn':5 'shpilt':2
                                   'search_artist'  'brandwein':2 'naftule':1
                                  'search_release'  '1911':5 '19111950':7 '1950':6 'songs':2,3 'traditionals':4 'yiddish':1
                                     'search_rest'  '03':5 '2004':1 '3':4 '303':6 'balkan':15 'brandwein':9,10 'gypsy':13 'klezmer':16 'loc':11 'naftule':7,8 'or':14 'style':12 'traditionals':2,3
                                    'search_combo'  '03':19 '1911':12C '19111950':14C '1950':13C '2004':15 '3':18 '303':20 'balkan':29 'brandwein':7B,23,24 'dem':4A 'far':3A 'gypsy':27 'klezmer':30 'loc':25 'naftule':1A,6B,21,22 'or':28 'rebn':5A 'shpilt':2A 'songs':9C,10C 'style':26 'traditionals':11C,16,17 'yiddish':8C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  3B
                                           'quals'  ['Q-BUSY-2', 'Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['jewish', 'old klezmer', 'clarinet', 'all', 'klezmer']
                                        'tag_date'  1930
                                     'discogstags'  ['folk, world, & country', 'klezmer']

============================== file details ==============================
                                           'mtime'  1643982346.8675654  (2022-02-04 14:45:46)
                             'size'  3326214