======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '238'
                                          'artist'  'Lipps Inc.'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Funky Town'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['disco', 'funk', '80s', 'pop', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '122.1'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '122.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1980'
'TFLT' (File type)                                  '/3'
'TIT2' (Title/songname/content description)         'Funky Town'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 '(CD/DD)'
'TPE1' (Lead performer(s)/Soloist(s))               'Lipps Inc.'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['disco', 'funk', '80s', 'pop', '70s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.79 dB'
'TXXX:replaygain_track_peak'                        '0.605014'

========================== row from database ==========================
                                              'id'  1524795
                                            'path'  /data/Music/Bulk/00poprockelectronic/Disco 70_s 80_s/DSA/Lipps Inc. - Funky Town.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  238
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  9535915
                                           'mtime'  1620569082
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Disco 70_s 80_s DSA electronic we disco or italo
                                      'tag_artist'  Lipps Inc.
                                     'tag_release'  None
                                       'tag_title'  Funky Town
                                             'bpm'  122.1
                                    'search_title'  'funky':1 'town':2
                                   'search_artist'  'inc':2,3 'lipps':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '70':3 '80':5 'disco':2 'dsa':7 'electronic':8 'italo':11 'or':10 's':4,6 'we':9
                                    'search_combo'  '00poprockelectronic':6 '70':8 '80':10 'disco':7 'dsa':12 'electronic':13 'funky':1A 'inc':4B,5B 'italo':16 'lipps':3B 'or':15 's':9,11 'town':2A 'we':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['disco', 'funk', '80s', 'pop', '70s']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620569082.3714066  (2021-05-09 16:04:42)
                             'size'  9535915