======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '171'
                                          'artist'  'Neil Innes'
                                     'text_people'  ''
                                         'release'  'how sweet to be an idiot'
                                           'title'  'How Sweet To Be An Idiot'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', "
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                                      'lastfmtags'  "['need to rate', 'comedy', 'humor', 'british', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter;entertaining-eccentric'
                                             'bpm'  '144.028'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'how sweet to be an idiot'
'TBPM' (BPM (beats per minute))                     '144.028'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter', 'entertaining-eccentric']
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'How Sweet To Be An Idiot'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Neil Innes'
'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-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['need to rate', 'comedy', 'humor', 'british', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.76 dB'
'TXXX:replaygain_track_peak'                        '0.705565'

========================== row from database ==========================
                                              'id'  240306
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0incharacter/Neil Innes/06 how sweet to be an idiot.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  171
                                           'genre'  ifs-songwriter;entertaining-eccentric
                                        'filesize'  5484787
                                           'mtime'  1620527164
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0incharacter 06 ifs songwriter;entertaining eccentric
                                      'tag_artist'  Neil Innes
                                     'tag_release'  how sweet to be an idiot
                                       'tag_title'  How Sweet To Be An Idiot
                                             'bpm'  144.028
                                    'search_title'  'an':5 'be':4 'how':1 'idiot':6 'sweet':2 'to':3
                                   'search_artist'  'innes':2 'neil':1
                                  'search_release'  'an':5 'be':4 'how':1 'idiot':6 'sweet':2 'to':3
                                     'search_rest'  '0incharacter':1 'eccentric':7 'entertaining':4,6 'ifs':2 'songwriter':3,5
                                    'search_combo'  '0incharacter':15 'an':5A,13C 'be':4A,12C 'eccentric':21 'entertaining':18,20 'how':1A,9C 'idiot':6A,14C 'ifs':16 'innes':8B 'neil':7B 'songwriter':17,19 'sweet':2A,10C 'to':3A,11C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['need to rate', 'comedy', 'humor', 'british', 'singer songwriter']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527164.4632585  (2021-05-09 04:26:04)
                             'size'  5484787