======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '152'
                                          'artist'  'The Emperors'
                                     'text_people'  ''
                                         'release'  'I Was A Teenage Caveman'
                                           'title'  'I Want My Woman'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-JZFKS-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'rock', 'surf rock', 'garage rock', 'funky 16 corners']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '119.8'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'I Was A Teenage Caveman'
'TBPM' (BPM (beats per minute))                     '119.8'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'I Want My Woman'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Emperors'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['surf', 'rock', 'surf rock', 'garage rock', 'funky 16 corners']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.41 dB'
'TXXX:replaygain_track_peak'                        '0.481369'

========================== row from database ==========================
                                              'id'  1410255
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/The Emperors - va - I Was A Teenage Caveman/05 - The Emperors - I Want My Woman.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  152
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  2139537
                                           'mtime'  1620737144
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy va 05 rock cppex psychedelic
                                      'tag_artist'  The Emperors
                                     'tag_release'  I Was A Teenage Caveman
                                       'tag_title'  I Want My Woman
                                             'bpm'  119.8
                                    'search_title'  'i':1 'my':3 'want':2 'woman':4
                                   'search_artist'  'emperors':2 'the':1
                                  'search_release'  'a':3 'caveman':5 'i':1 'teenage':4 'was':2
                                     'search_rest'  'classicprogpsy':1 'cppex':4 'psychedelic':5 'rock':3 'va':2
                                    'search_combo'  'a':9C 'caveman':11C 'classicprogpsy':12 'cppex':15 'emperors':6B 'i':1A,7C 'my':3A 'psychedelic':16 'rock':14 'teenage':10C 'the':5B 'va':13 'want':2A 'was':8C 'woman':4A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'rock', 'surf rock', 'garage rock', 'funky 16 corners']
                                        'tag_date'  1960
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1620737144.4654677  (2021-05-11 14:45:44)
                             'size'  2139537