======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '201'
                                          'artist'  'Barbara Jones'
                                     'text_people'  ''
                                         'release'  'Reggae Singles'
                                           'title'  "Hold On To What You've Got"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'ska', 'barbara jones', 'jamaica', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '00'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '101.057'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Reggae Singles'
'TBPM' (BPM (beats per minute))                     '101.057'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TIT2' (Title/songname/content description)         "Hold On To What You've Got"
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '201000'
'TPE1' (Lead performer(s)/Soloist(s))               'Barbara Jones'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '00'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['reggae', 'ska', 'barbara jones', 'jamaica', 'female vocalists']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'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'                        '0.472553'

========================== row from database ==========================
                                              'id'  1516111
                                            'path'  /data/Music/Bulk/00localcharacter/reggae singles/[JA_Blank_LY 6007-A] Barbara Jones - Hold On To What You_ve Got.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  201
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  4026293
                                           'mtime'  1620524086
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter reggae singles [JA_Blank_LY 6007 A] You_ve loc style reggae or dub or ska or dancehall dub roots and reggae
                                      'tag_artist'  Barbara Jones
                                     'tag_release'  Reggae Singles
                                       'tag_title'  Hold On To What You've Got
                                             'bpm'  101.057
                                    'search_title'  'got':8 'hold':1 'on':2 'to':3 've':6 'what':4 'you':5 'youve':7
                                   'search_artist'  'barbara':1 'jones':2
                                  'search_release'  'reggae':1 'singles':2
                                     'search_rest'  '6007':9 'a':10,11 'and':21 'blank':4,7 'dancehall':19 'dub':17 'ja':3,6 'loc':14 'ly':5,8 'or':16 'reggae':1 'roots':20 'singles':2 'ska':18 'style':15 've':13 'you':12
                                    'search_combo'  '6007':21 'a':22,23 'and':33 'barbara':9B 'blank':16,19 'dancehall':31 'dub':29 'got':8A 'hold':1A 'ja':15,18 'jones':10B 'loc':26 'ly':17,20 'on':2A 'or':28 'reggae':11C,13 'roots':32 'singles':12C,14 'ska':30 'style':27 'to':3A 've':6A,25 'what':4A 'you':5A,24 'youve':7A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'ska', 'barbara jones', 'jamaica', 'female vocalists']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524086.0429728  (2021-05-09 03:34:46)
                             'size'  4026293