======================== unified (from filesystem) ========================
                                         'bitrate'  '170.823'
                                        'duration'  '147'
                                          'artist'  'The Beach Boys'
                                     'text_people'  ''
                                         'release'  'All summer long'
                                           'title'  "Surfin' U.S.A."
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'rock', 'pop', '60s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '21'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf;rock-cppex'
                                             'bpm'  '105.5'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '350BC515'
'TALB' (Album/Movie/Show title)                     'All summer long'
'TBPM' (BPM (beats per minute))                     '105.5'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-surf', 'rock-cppex']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         "Surfin' U.S.A."
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Beach Boys'
'TRCK' (Track number/Position in set)               '3/21'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'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'                                   ['surf', 'rock', 'pop', '60s', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.78 dB'
'TXXX:replaygain_track_peak'                        '0.412012'

========================== row from database ==========================
                                              'id'  1499215
                                            'path'  /data/Music/Bulk/00poprockelectronic/Beach Boys/All summer long/The Beach Boys - Surfin_ U.S.A..mp3
                                         'working'  None
                                         'bitrate'  170
                                    'duration_sec'  147
                                           'genre'  rock-pop-surf;rock-cppex
                                        'filesize'  3147283
                                           'mtime'  1636038726
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Surfin_ rock pop surf;rock cppex
                                      'tag_artist'  The Beach Boys
                                     'tag_release'  All summer long
                                       'tag_title'  Surfin' U.S.A.
                                             'bpm'  105.5
                                    'search_title'  'a':5 's':4 'surfin':1,2 'u':3 'usa':6
                                   'search_artist'  'beach':2 'boys':3 'the':1
                                  'search_release'  'all':1 'long':3 'summer':2
                                     'search_rest'  '00poprockelectronic':1 'cppex':9 'pop':4 'rock':3,6,8 'surf':5,7 'surfin':2
                                    'search_combo'  '00poprockelectronic':13 'a':5A 'all':10C 'beach':8B 'boys':9B 'cppex':21 'long':12C 'pop':16 'rock':15,18,20 's':4A 'summer':11C 'surf':17,19 'surfin':1A,2A,14 'the':7B 'u':3A 'usa':6A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'rock', 'pop', '60s', 'classic rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038726.357702  (2021-11-04 16:12:06)
                             'size'  3147283