======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '244'
                                          'artist'  'Foundations'
                                     'text_people'  ''
                                         'release'  'Easy Instr 70s'
                                           'title'  "In The Beginning (MO Inst. b-s. 'I'm Gonna be a Rich Man' '70)"
                                           '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-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['metalcore', 'hardcore', 'oldies', '60s', 'melodic hardcore']"
                                     'discogstags'  "['hardcore', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '144.2'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Easy Instr 70s'
'TBPM' (BPM (beats per minute))                     '144.2'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         "In The Beginning (MO Inst. b-s. 'I'm Gonna be a Rich Man' '70)"
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Foundations'
'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:discogstags'                                  ['hardcore', 'rock']
'TXXX:lastfmtags'                                   ['metalcore', 'hardcore', 'oldies', '60s', 'melodic hardcore']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.45 dB'
'TXXX:replaygain_track_peak'                        '0.517244'

========================== row from database ==========================
                                              'id'  1533779
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Foundations - In The Beginning (MO Inst. b-s. _I_m Gonna be a Rich Man_ _70).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  244
                                           'genre'  funk or soul
                                        'filesize'  5873631
                                           'mtime'  1628357825
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY 70_s _I_m Man_ _70) funk or soul
                                      'tag_artist'  Foundations
                                     'tag_release'  Easy Instr 70s
                                       'tag_title'  In The Beginning (MO Inst. b-s. 'I'm Gonna be a Rich Man' '70)
                                             'bpm'  144.2
                                    'search_title'  '70':20,21 'a':16 'b':8 'be':15 'beginning':3 'bs':10 'gonna':14 'i':11 'im':13 'in':1 'inst':6,7 'm':12 'man':18,19 'mo':4,5 'rich':17 's':9 'the':2
                                   'search_artist'  'foundations':1
                                  'search_release'  '70s':3 'easy':1 'instr':2
                                     'search_rest'  '70':5,10,11 'easy':4 'funk':2 'i':7 'm':8 'man':9 'or':12 's':6 'soul':3 'swing':1
                                    'search_combo'  '70':20A,21A,30,35,36 '70s':25C 'a':16A 'b':8A 'be':15A 'beginning':3A 'bs':10A 'easy':23C,29 'foundations':22B 'funk':27 'gonna':14A 'i':11A,32 'im':13A 'in':1A 'inst':6A,7A 'instr':24C 'm':12A,33 'man':18A,19A,34 'mo':4A,5A 'or':37 'rich':17A 's':9A,31 'soul':28 'swing':26 'the':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['metalcore', 'hardcore', 'oldies', '60s', 'melodic hardcore']
                                        'tag_date'  1975
                                     'discogstags'  ['hardcore', 'rock']

============================== file details ==============================
                                           'mtime'  1628357824.5241554  (2021-08-07 19:37:04)
                             'size'  5873631