======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '256'
                                          'artist'  'Big Brother and the Holding Company'
                                     'text_people'  ''
                                         'release'  'Cheap Thrills'
                                           'title'  'Oh, Sweet Mary'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', 'psychedelic rock', 'blues', 'psychedelic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic;rock-cppex-classic'
                                             'bpm'  '146.000'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Cheap Thrills'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic', 'rock-cppex-classic']
'TDRC' (Recording time)                             '1968'
'TIT2' (Title/songname/content description)         'Oh, Sweet Mary'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Big Brother and the Holding Company'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', 'psychedelic rock', 'blues', 'psychedelic', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.18 dB'
'TXXX:replaygain_track_peak'                        '0.534776'

========================== row from database ==========================
                                              'id'  1333417
                                            'path'  /data/Music/Bulk/00poprockelectronic/Big Brother and the Holding Company/Cheap Thrills/MBZ;#Big Brother ___ding Company;#Cheap Thrills;#06;#Oh, Sweet Mary.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  256
                                           'genre'  rock-cppex-psychedelic;rock-cppex-classic
                                        'filesize'  6155729
                                           'mtime'  1636039105
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Big ___ding Company;#Cheap Thrills;#06;#Oh, rock cppex psychedelic;rock cppex classic
                                      'tag_artist'  Big Brother and the Holding Company
                                     'tag_release'  Cheap Thrills
                                       'tag_title'  Oh, Sweet Mary
                                             'bpm'  146.0
                                    'search_title'  'mary':4 'oh':1,2 'sweet':3
                                   'search_artist'  'and':3 'big':1 'brother':2 'company':6 'holding':5 'the':4
                                  'search_release'  'cheap':1 'thrills':2
                                     'search_rest'  '00poprockelectronic':1 '06':12,15 'big':3,5 'cheap':8,10 'classic':23 'company':7,9 'cppex':18 'ding':6 'mbz':2,4 'oh':13,16 'psychedelic':19,21 'rock':17,20,22 'thrills':11,14
                                    'search_combo'  '00poprockelectronic':13 '06':24,27 'and':7B 'big':5B,15,17 'brother':6B 'cheap':11C,20,22 'classic':35 'company':10B,19,21 'cppex':30 'ding':18 'holding':9B 'mary':4A 'mbz':14,16 'oh':1A,2A,25,28 'psychedelic':31,33 'rock':29,32,34 'sweet':3A 'the':8B 'thrills':12C,23,26
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'psychedelic rock', 'blues', 'psychedelic', 'rock']
                                        'tag_date'  1968
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636039104.9045966  (2021-11-04 16:18:24)
                             'size'  6155729