======================== unified (from filesystem) ========================
                                         'bitrate'  '218.279'
                                        'duration'  '303'
                                          'artist'  'At the Drive-In'
                                     'text_people'  ''
                                         'release'  "You Can't Judge a Song By Its Cover"
                                           'title'  ('Take Up Thy Stethoscope and Walk (Pink Floyd Cover, Live from Steve Lamacq '
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                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
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                                      'lastfmtags'  "['alternative rock', 'indie', 'emo', 'post hardcore', 'rock', 'alternative']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'set-cover or covered-styled;set-cover or covered'
                                             'bpm'  '106.475'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'POPM:no@email'                                     POPM(email='no@email', rating=186, count=0)
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'TBPM' (BPM (beats per minute))                     '106.475'
'TCON' (Content type, a.k.a. Genre)                 ['set-cover or covered-styled', 'set-cover or covered']
'TIT2' (Title/songname/content description)         ('Take Up Thy Stethoscope and Walk (Pink Floyd Cover, Live from Steve Lamacq '
 'Show BBC)')
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'At the Drive-In'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:DATE'                                         '2005'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative rock', 'indie', 'emo', 'post hardcore', 'rock', 'alternative']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.05 dB'
'TXXX:replaygain_track_peak'                        '0.379345'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00poprockelectronic/you can_t judge a song by its cover/-00-At the Drive-In-Take Up Thy Stethoscope and Walk (Pink Floyd Cover, Live from Steve Lamacq Show BBC).mp3
                                         'working'  None
                                         'bitrate'  218
                                    'duration_sec'  303
                                           'genre'  set-cover or covered-styled;set-cover or covered
                                        'filesize'  8271754
                                           'mtime'  1638540235
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic you can_t judge song by its cover 00 set cover or covered styled;set cover or covered
                                      'tag_artist'  At the Drive-In
                                     'tag_release'  You Can't Judge a Song By Its Cover
                                       'tag_title'  Take Up Thy Stethoscope and Walk (Pink Floyd Cover, Live from Steve Lamacq Show BBC)
                                             'bpm'  106.475
                                    'search_title'  'and':5 'bbc':17,18 'cover':10,11 'floyd':9 'from':13 'lamacq':15 'live':12 'pink':7,8 'show':16 'stethoscope':4 'steve':14 'take':1 'thy':3 'up':2 'walk':6
                                   'search_artist'  'at':1 'drive':3 'drivein':5 'in':4 'the':2
                                  'search_release'  'a':6 'by':8 'can':2 'cant':4 'cover':10 'its':9 'judge':5 'song':7 't':3 'you':1
                                     'search_rest'  '00':10 '00poprockelectronic':1 'by':7 'can':3 'cover':9 'covered':13 'its':8 'judge':5 'or':12 'set':11,15,17 'song':6 'styled':14,16 't':4 'you':2
                                    'search_combo'  '00':43 '00poprockelectronic':34 'a':29C 'and':5A 'at':19B 'bbc':17A,18A 'by':31C,40 'can':25C,36 'cant':27C 'cover':10A,11A,33C,42 'covered':46 'drive':21B 'drivein':23B 'floyd':9A 'from':13A 'in':22B 'its':32C,41 'judge':28C,38 'lamacq':15A 'live':12A 'or':45 'pink':7A,8A 'set':44,48,50 'show':16A 'song':30C,39 'stethoscope':4A 'steve':14A 'styled':47,49 't':26C,37 'take':1A 'the':20B 'thy':3A 'up':2A 'walk':6A 'you':24C,35
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie', 'emo', 'post hardcore', 'rock', 'alternative']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638540234.802138  (2021-12-03 15:03:54)
                             'size'  8271754