======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '61'
                                          'artist'  'Baluan at Komuli'
                                     'text_people'  ''
                                         'release'  'Music! The Berlin Phonogramm-Archiv 1900-2000'
                                           'title'  'A Uali [Dance Song] (Balun, Admiralty Islands, 1907)'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '42'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '114.028'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Music! The Berlin Phonogramm-Archiv 1900-2000'
'TBPM' (BPM (beats per minute))                     '114.028'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000-06-11'
'TIT2' (Title/songname/content description)         'A Uali [Dance Song] (Balun, Admiralty Islands, 1907)'
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Baluan at Komuli'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/4'
'TPUB' (Publisher)                                  'WERGO'
'TRCK' (Track number/Position in set)               '16/42'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Baluan at Komuli'
'TSST' (Set subtitle)                               'Wax Cylinder Recordings 1893-1954'
'TXXX:ASIN'                                         'B00004YUCI'
'TXXX:Artists'                                      'Baluan at Komuli'
'TXXX:BARCODE'                                      '4010228170122'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '4c4fa0e1-0593-43e8-98e7-c1a88976a4a3'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Artist Id'                        '2eb632dc-7158-40c6-816c-0c68b372ddee'
'TXXX:MusicBrainz Release Group Id'                 '973c39f1-1c5e-35f6-9972-9f81ee206236'
'TXXX:MusicBrainz Release Track Id'                 '01a90238-5d04-3fe4-9334-884719449b17'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:originalyear'                                 '2000'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.77 dB'
'TXXX:replaygain_track_peak'                        '0.524956'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'28ba215d-1618-4457-9196-b700bccc2921')

========================== row from database ==========================
                                              'id'  474196
                                            'path'  /data/Music/Bulk/00localcharacter/VA. World 1： Trad/Berlin Phonogramm Archiv - Wax Cylinder Recordings (1893-1954) [192k]/16-anon_(admiralty_islanders_1907)-uali_dance_song_from_baluan_at_komuli.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  61
                                           'genre'  loc-unsorted
                                        'filesize'  1554992
                                           'mtime'  1621629862
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA. World 1： Trad Wax Cylinder Recordings (1893 1954) [192k] 16 anon_(admiralty_islanders_1907) uali_dance_song_from_baluan_at_komuli loc unsorted
                                      'tag_artist'  Baluan at Komuli
                                     'tag_release'  Music! The Berlin Phonogramm-Archiv 1900-2000
                                       'tag_title'  A Uali [Dance Song] (Balun, Admiralty Islands, 1907)
                                             'bpm'  114.028
                                    'search_title'  '1907':12,13 'a':1 'admiralty':9 'balun':7,8 'dance':3,4 'islands':10,11 'song':5,6 'uali':2
                                   'search_artist'  'at':2 'baluan':1 'komuli':3
                                  'search_release'  '1900':7 '19002000':9 '2000':8 'archiv':5 'berlin':3 'music':1 'phonogramm':4 'phonogrammarchiv':6 'the':2
                                     'search_rest'  '1':4,5,6 '1893':11,12 '1907':20,24 '192k':15,16 '1954':13,14 'admiralty':18,22 'anon':17,21 'at':30 'baluan':29 'cylinder':9 'dance':26 'from':28 'islanders':19,23 'komuli':31 'loc':32 'recordings':10 'song':27 'trad':7 'uali':25 'unsorted':33 'va':1,2 'wax':8 'world':3
                                    'search_combo'  '1':29,30,31 '1893':36,37 '1900':23C '19002000':25C '1907':12A,13A,45,49 '192k':40,41 '1954':38,39 '2000':24C 'a':1A 'admiralty':9A,43,47 'anon':42,46 'archiv':21C 'at':15B,55 'baluan':14B,54 'balun':7A,8A 'berlin':19C 'cylinder':34 'dance':3A,4A,51 'from':53 'islanders':44,48 'islands':10A,11A 'komuli':16B,56 'loc':57 'music':17C 'phonogramm':20C 'phonogrammarchiv':22C 'recordings':35 'song':5A,6A,52 'the':18C 'trad':32 'uali':2A,50 'unsorted':58 'va':26,27 'wax':33 'world':28
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629862.3589325  (2021-05-21 22:44:22)
                             'size'  1554992