======================== unified (from filesystem) ========================
                                         'bitrate'  '194.672'
                                        'duration'  '168'
                                          'artist'  'Dave Harris & The Powerhouse Five'
                                     'text_people'  ''
                                         'release'  "Cocktail Mix, Volume 1: Bachelor's Guide to the Galaxy"
                                           'title'  'The Penguin'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
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                                     'discogstags'  "['space-age', 'jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '18'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '100.058'
                                             'key'  '5A'
                                        'acoustid'  'd5436b34-a6fe-40dc-baf6-4dc01e308213'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '100.058'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TCOP' (Copyright message)                          'Rhino R2 72237'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996-01-23'
'TENC' (Encoded by)                                 'Another slipshod Visorman® Rip'
'TIT2' (Title/songname/content description)         'The Penguin'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Dave Harris & The Powerhouse Five'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Rhino'
'TRCK' (Track number/Position in set)               '8/18'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Dave Harris & The Powerhouse Five'
'TXXX:ASIN'                                         'B0000033PD'
'TXXX:Acoustid Id'                                  'd5436b34-a6fe-40dc-baf6-4dc01e308213'
'TXXX:BARCODE'                                      '081227223724'
'TXXX:CATALOGNUMBER'                                'R2 72237'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'a37cc9a7-7998-402d-bcff-b9a21954f7f7'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '492a7db7-d2d4-40b1-9b6f-13bc73359ae1'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['space-age', 'jazz']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.07 dB'
'TXXX:replaygain_track_peak'                        '0.694300'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/VA - Cocktail Mix Vol.1： Bachelor_s Guide To The Galaxy (Rhino, 1995) [vBr]/08 Dave Harris & The Powerhouse Five - The Penguin.mp3
                                         'working'  None
                                         'bitrate'  194
                                    'duration_sec'  168
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  4114741
                                           'mtime'  1620537023
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country VA Vol.1： Bachelor_s To (Rhino, 1995) [vBr] 08 prerock jb jazz lounge exotica bossa
                                      'tag_artist'  Dave Harris & The Powerhouse Five
                                     'tag_release'  Cocktail Mix, Volume 1: Bachelor's Guide to the Galaxy
                                       'tag_title'  The Penguin
                                             'bpm'  100.058
                                    'search_title'  'penguin':2 'the':1
                                   'search_artist'  'dave':1 'five':5 'harris':2 'powerhouse':4 'the':3
                                  'search_release'  '1':5,6 'bachelor':7 'bachelors':9 'cocktail':1 'galaxy':13 'guide':10 'mix':2,3 's':8 'the':12 'to':11 'volume':4
                                     'search_rest'  '1':7,10 '1995':17,18 'bachelor':12 'bossa':24 'br':27,28 'country':4 'exotica':2 'jazz':1 'jb':22 'lounge':23 'oldies':3 'prerock':21 'rhino':15,16 's':13 'to':14 'v':25,26 'va':5 'vbr':19,20 'vol':6,9 'vol1':8,11
                                    'search_combo'  '1':12C,13C,27,30 '1995':37,38 'bachelor':14C,32 'bachelors':16C 'bossa':44 'br':47,48 'cocktail':8C 'country':24 'dave':3B 'exotica':22 'five':7B 'galaxy':20C 'guide':17C 'harris':4B 'jazz':21 'jb':42 'lounge':43 'mix':9C,10C 'oldies':23 'penguin':2A 'powerhouse':6B 'prerock':41 'rhino':35,36 's':15C,33 'the':1A,5B,19C 'to':18C,34 'v':45,46 'va':25 'vbr':39,40 'vol':26,29 'vol1':28,31 'volume':11C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1996
                                     'discogstags'  ['space-age', 'jazz']

============================== file details ==============================
                                           'mtime'  1620537022.9242532  (2021-05-09 07:10:22)
                             'size'  4114741