======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '221'
                                          'artist'  'German Cars Vs. American Homes'
                                     'text_people'  ''
                                         'release'  'self-titled'
                                           'title'  'On a Stick (live)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-UNU-2', "
 "'Q-HHRNBTT-1', 'Q-PLAY-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-vocals-3', 'q-mixbeat-2', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['cool finds', 'adam sandler', 'lmno', 'strong bad', 'eddie izzard']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'entertaining-songwriters'
                                             'bpm'  '134.288'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'self-titled'
'TBPM' (BPM (beats per minute))                     '134.288'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-songwriters'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'On a Stick (live)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'German Cars Vs. American Homes'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['cool finds', 'adam sandler', 'lmno', 'strong bad', 'eddie izzard']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.43 dB'
'TXXX:replaygain_track_peak'                        '0.850604'

========================== row from database ==========================
                                              'id'  1315437
                                            'path'  /data/Music/Bulk/00spent/German Cars Vs. American Homes/German Cars Vs. American Homes - On a Stick (live).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  221
                                           'genre'  entertaining-songwriters
                                        'filesize'  3540527
                                           'mtime'  1636913899
                                   'redo_metaread'  0
                                        'rest_str'   00spent entertaining songwriters
                                      'tag_artist'  German Cars Vs. American Homes
                                     'tag_release'  self-titled
                                       'tag_title'  On a Stick (live)
                                             'bpm'  134.288
                                    'search_title'  'a':2 'live':4,5 'on':1 'stick':3
                                   'search_artist'  'american':5 'cars':2 'german':1 'homes':6 'vs':3,4
                                  'search_release'  'self':1 'selftitled':3 'titled':2
                                     'search_rest'  '00spent':1 'entertaining':2 'songwriters':3
                                    'search_combo'  '00spent':15 'a':2A 'american':10B 'cars':7B 'entertaining':16 'german':6B 'homes':11B 'live':4A,5A 'on':1A 'self':12C 'selftitled':14C 'songwriters':17 'stick':3A 'titled':13C 'vs':8B,9B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['cool finds', 'adam sandler', 'lmno', 'strong bad', 'eddie izzard']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913899.1566517  (2021-11-14 19:18:19)
                             'size'  3540527