======================== unified (from filesystem) ========================
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                                        'duration'  '442'
                                          'artist'  'Ferus Mustafov & Milan Safkov'
                                     'text_people'  'Various Artists'
                                         'release'  'Balkan Blues'
                                           'title'  'Balkan Blues, Part 1'
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                            'musicbrainz_artistid'  ''
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                                     'tracknumber'  '12'
                                      'tracktotal'  '16'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '140.725'
                                             'key'  '9B'
                                        'acoustid'  'b13bbf52-faf4-4b52-9a30-bde196c5458b'
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======================== rawer (from filesystem) ========================

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'COMM:iTunes_CDDB_IDs:eng'                          '16+CA6E4D2AB30811B09D9D7E9847DF571A+759412'
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'TBPM' (BPM (beats per minute))                     '140.725'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Various Artists'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-11-16'
'TENC' (Encoded by)                                 'iTunes v7.0.2'
'TIT2' (Title/songname/content description)         'Balkan Blues, Part 1'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Ferus Mustafov & Milan Safkov'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'Network Medien'
'TRCK' (Track number/Position in set)               '12/16'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Mustafov, Ferus & Safkov, Milan'
'TXXX:ASIN'                                         'B0000300KS'
'TXXX:Acoustid Id'                                  'b13bbf52-faf4-4b52-9a30-bde196c5458b'
'TXXX:Artists'                                      'Ferus Mustafov/Milan Safkov'
'TXXX:BARCODE'                                      '785965102425'
'TXXX:CATALOGNUMBER'                                '51024'
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'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
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'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.76 dB'
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========================== row from database ==========================
                                              'id'  1390283
                                            'path'  /data/Music/Bulk/00localcharacter/Bulgarian All Star Orchestra - balkan blues 2/Ferus Mustafov & Milan Safkov - Balkan Blues, Pt. 1.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  442
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  10642936
                                           'mtime'  1620528383
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                                        'rest_str'   00localcharacter Bulgarian All Star Orchestra balkan blues 2 Pt. loc style gypsy or balkan or klezmer;mi brass
                                      'tag_artist'  Ferus Mustafov & Milan Safkov
                                     'tag_release'  Balkan Blues
                                       'tag_title'  Balkan Blues, Part 1
                                             'bpm'  140.725
                                    'search_title'  '1':5 'balkan':1 'blues':2,3 'part':4
                                   'search_artist'  'ferus':1 'milan':3 'mustafov':2 'safkov':4
                                  'search_release'  'balkan':1 'blues':2
                                     'search_rest'  '2':7 'all':2 'balkan':5 'blues':6 'brass':18 'bulgarian':1 'gypsy':12 'klezmer':14,16 'loc':10 'mi':15,17 'or':13 'orchestra':4 'pt':8,9 'star':3 'style':11
                                    'search_combo'  '1':5A '2':18 'all':13 'balkan':1A,10C,16 'blues':2A,3A,11C,17 'brass':29 'bulgarian':12 'ferus':6B 'gypsy':23 'klezmer':25,27 'loc':21 'mi':26,28 'milan':8B 'mustafov':7B 'or':24 'orchestra':15 'part':4A 'pt':19,20 'safkov':9B 'star':14 'style':22
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528382.5350058  (2021-05-09 04:46:22)
                             'size'  10642936